JP5792467B2 - Food production and storage containers, food production methods - Google Patents

Description

The present invention is a food preparation and storage vessel, which related to food preparation, and more particularly, a method of producing a usable storage container for food, and using the vessel to produce a food product it relates to.

When cooking rice using an electric kettle, rice grains do not adhere to the inner surface of the inner pot container, so that the cooked rice can be stored in a delicious state on the inner surface of the inner pot container. It has been proposed to form a large number of dotted irregularities (see Patent Document 1).
On the other hand, because liquid components flow down when sashimi, tempura, etc. are placed on the plate, a proposal is made to separate the liquid components by providing linear irregularities at the bottom of the plate and collecting the liquid components in the recesses (patent Reference 2), when a sheet with a concavo-convex pattern on the surface and another sheet without a pattern are formed by heat-adhering using a mold to produce a packaging container with a concavo-convex pattern on the surface, electrical discharge machining, etching, etc. Proposal of eliminating the use of the method (see Patent Document 3), Proposal of a heat-resistant container provided with a convex shape having a triangular cross section extending in the vertical direction on the side wall of the plastic container (see Patent Document 4), and sealing the cooked rice A multi-layer plastic container placed in a vertical direction, and provided with linear irregularities extending in the vertical direction on the side wall so that it can be tasted by heating with a microwave oven or the like (see Patent Document 5). In order to maintain the texture and flavor, a holding space for holding moisture such as uneven patterns is provided at the bottom inside the container, and the water that has evaporated and condensed from the cooked rice is held at the bottom. (See Patent Document 6), food storage container (see Patent Document 7) with an uneven surface extending in the vertical direction on the side wall of the container, and an oil absorbing layer on the inner surface so as to absorb oil and juice and prevent stickiness Many have been proposed.

JP 2001-238791 A JP-A-11-216055 JP 2010-58814 A JP-A-10-218155 Japanese Patent Laid-Open No. 10-56994 JP 2006-304670 A JP 2000-53170 A

However, as mentioned above, many containers that can be used for food storage have been proposed, but they can be used for food production as well as for food storage, and heated in a microwave oven or the like. Even so, no container has been proposed that can hold the container with bare hands and can easily move the food to a dish or the like when eating.
Filling the container with solid food ingredients and sterilizing by heating, or adding cooking water or cooking liquid and performing heat treatment etc. will reduce the strength of the container due to heating, and it will be pushed by the weight of the contents Deformation such as swelling will result in failure to transport properly, or the contents will flow out. In addition, after the hermetically sealed, the dent and other deformations occur due to reduced pressure due to the temperature drop of the food in the container, the hermetic seal may be peeled off and the food may be crushed. There is a problem that food cannot be manufactured.

  In addition, filling food containers with solid food ingredients, adding cooking water or cooking liquid, and heat-treating, the starch in the food becomes alpha and easily adheres to the inner wall of the food. Is firmly attached to the inner wall of the container, and it becomes difficult to peel off from the container.

  Once cooked in a rice cooker, etc., cool well, transfer to a plastic container, etc., and seal and store for storage. There is a problem that management is necessary and a transfer process is complicated.

  In addition, when a plastic container or the like is heated with a microwave oven or the like, the container becomes very hot and it becomes difficult to hold it with bare hands, and there is a risk of being burned in some cases, which is a problem.

The first object of the present invention is to solve the conventional problems, and when heat treatment or hermetic sealing is performed, the strength of the container does not decrease and deformation such as swelling and dent does not occur, and the texture and flavor In addition to producing excellent food, you can hold the container with your bare hands even when heated in a microwave oven, etc., and the food obtained by heat treatment does not adhere to the inner wall of the container, Is easy to peel off from the container and can maintain and preserve the food texture and flavor of the food as it is.
The second object of the present invention is to provide a method capable of easily producing foods such as aseptic foods excellent in texture, flavor and storage using the food production and storage containers of the present invention. der Ru.

  As a result of diligent research, the present inventors have found that the above-mentioned problems can be solved by using a container having a double-structured corrugated rib, and have accomplished the present invention.

Claim 1 of the present invention for solving the above-mentioned problems is a storage that doubles as a food production container that hermetically seals the opening after the storage container having an opening is filled with a solid food material and heat-treated. A container for
A plurality of concave ribs and convex ribs along the vertical direction of the container side wall are provided with a large corrugated concave / convex rib formed in a circumferential direction, and the concave corrugated ribs and / or convexes of the large corrugated convex / concave ribs are provided. At least a part of the rib is formed with a small corrugated rib having at least two sets of small concave ribs and convex ribs in parallel with the large corrugated rib. This is a food production and storage container.

  A second aspect of the present invention is the container for food production and storage according to the first aspect, wherein the small corrugated uneven rib is a concave rib portion container as viewed from the inside of the large corrugated uneven rib. It is formed on the inner surface and the outer surface.

  A third aspect of the present invention is the food production and storage container according to the first or second aspect, wherein the heat treatment method is steam heating.

  According to a fourth aspect of the present invention, in the food production and storage container according to any one of the first to third aspects of the present invention, the solid food material contains one or more combined grains. It is characterized by being.

  According to a fifth aspect of the present invention, in the food production and storage container according to any one of the first to fourth aspects, the pitch of adjacent convex ribs or concave ribs of the small corrugated ribs is the It is characterized in that it is shorter than the length of each shortest portion of the food constituting the maximum mass in the food after the whole solid food raw material filled in the container is heat-treated.

  According to a sixth aspect of the present invention, in the food production and storage container according to any one of the first to fifth aspects, a dotted and / or wavy bottom unevenness is formed on the bottom of the container, and the bottom The pitch of the convex or concave portions adjacent to the concave and convex portions is shorter than the length of each shortest portion of the food constituting the maximum mass in the food after the heat treatment of the whole solid food raw material filled in the container. And

  A seventh aspect of the present invention is the food production and storage container according to any one of the first to sixth aspects, wherein the storage container also serving as the food production container is a container that can be heated in a microwave oven. It is characterized by that.

  According to an eighth aspect of the present invention, the storage container having the opening according to any one of the first to seventh aspects is filled with a solid food material and heat-treated, and then the opening is hermetically sealed. It is the manufacturing method of the foodstuff characterized by this.

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Claim 1 of the present invention is a storage container that also serves as a food production container that hermetically seals the opening after filling the storage container having an opening with a solid food material and heat-treating the container.
A plurality of concave ribs and convex ribs along the vertical direction of the container side wall are provided with a large corrugated concave / convex rib formed in a circumferential direction, and the concave corrugated ribs and / or convexes of the large corrugated convex / concave ribs are provided. At least a part of the rib is formed with a small corrugated rib having at least two sets of small concave ribs and convex ribs in parallel with the large corrugated rib. A food production and storage container characterized by:
Consists of large corrugated ribs and small corrugated ribs for the effects of changes in container material strength due to heating during heat treatment, etc., and changes in internal pressure due to temperature changes inside the container after hermetic sealing. As the corrugated ribs with a heavy structure are formed and the side walls of the container are structurally reinforced, it is possible to produce foods with excellent texture and flavor without deformation such as swelling and dents. In addition, the food obtained by heat treatment due to the presence of small corrugated ribs does not adhere to the inner wall of the container, it is easy to peel off from the container, and it is sealed and packaged so that the food texture and flavor of the food are maintained as they are Since it can preserve | save, there exists a remarkable effect that it can be used also for the storage of foodstuffs.
The container of the present invention has a double-structured corrugated rib having a large corrugated concave and convex rib and a small corrugated concave and convex rib, and therefore has a large surface area and good thermal efficiency during heat treatment, Heat distribution at the time of processing can be made uniform, and a remarkable effect is achieved in that a food with excellent texture and flavor can be produced by heat treatment uniformly in a short time.

A second aspect of the present invention is the container for food production and storage according to the first aspect, wherein the small corrugated uneven rib is a concave rib portion container as viewed from the inside of the large corrugated uneven rib. It is characterized by being formed on the inner surface and the outer surface,
The large corrugated ribs on the inside of the container side wall are easy to get into the concave ribs of the corrugated ribs. When the concave rib is formed, even if the food enters, there is a further remarkable effect that the entering food is easily peeled off,
When handling the container after being cooked in a microwave oven or the like, since the small corrugated irregularities are formed on the concave ribs as viewed from the inside of the large corrugated irregular ribs, the outer surface of the container and the bare hands The contact area is reduced, it is difficult to feel the heat, and it can be easily handled safely.

A third aspect of the present invention is the food production and storage container according to the first or second aspect, wherein the heat treatment method is steam heating.
When the container of the present invention is steam-heated, the steam is uniformly and sufficiently distributed in the container through the large wave-shaped uneven ribs and the small wave-shaped uneven ribs in the container during the heat treatment, so that it is uniform in a short time. Further, it is possible to produce a food having excellent texture and flavor by heat treatment.

According to a fourth aspect of the present invention, in the food production and storage container according to any one of the first to third aspects, the solid food material includes one or more combined grains. It is characterized by being,
In addition to producing a variety of foods with excellent texture and flavor, there is a further remarkable effect,
By using the container of the present invention, the starch contained in the cereal to be alphatized by the heat treatment suppresses the food obtained by the heat treatment from adhering to the inner surface of the container, and is more easily peeled off. Has a remarkable effect.

According to a fifth aspect of the present invention, in the food production and storage container according to any one of the first to fourth aspects, the pitch of adjacent convex ribs or concave ribs of the small corrugated ribs is the It is characterized by being shorter than the length of the individual shortest part of the food constituting the maximum mass in the food after the heat treatment of the whole solid food raw material filled in the container,
When the pitch is shorter than the length of each shortest portion of the food constituting the maximum mass, the heated food is difficult to enter the recessed portion of the small corrugated uneven rib, and the heated maximum mass is configured. By reducing the contact area between the food to be processed and the inner surface of the container of the present invention, it is difficult for most of the food to adhere to the container and it is possible to further peel off from the container.

  According to a sixth aspect of the present invention, in the food production and storage container according to any one of the first to fifth aspects, a dotted and / or wavy bottom unevenness is formed on the bottom of the container, and the bottom The pitch of the convex or concave portions adjacent to the concave and convex portions is shorter than the length of each shortest portion of the food constituting the maximum mass in the food after the heat treatment of the whole solid food raw material filled in the container. When the pitch of adjacent convex portions or concave portions of the bottom unevenness is shorter than the length of each shortest portion of the food constituting the maximum mass, the bottom unevenness is heated to the concave portion. The food is less likely to enter, and the contact area between the heated food constituting the maximum mass and the inner surface of the container of the present invention is reduced, so that most of the food is less likely to adhere and more easily peel from the container. It has a further remarkable effect, and it is difficult to change the moisture content of the food that constitutes the maximum mass that contacts the bottom unevenness by holding moisture etc. generated after cooking by the recessed part of the bottom unevenness. There is a further remarkable effect.

A seventh aspect of the present invention is the food production and storage container according to any one of the first to sixth aspects, wherein the storage container also serving as the food production container is a container that can be heated in a microwave oven. It is characterized by that,
Microwave microwaves can make it easier to eat food inside a container that has been heated uniformly in a short time, and have large wave-shaped uneven ribs and small wave-shaped uneven ribs. The double-walled wave-shaped uneven ribs made of the above are formed and the container side walls are structurally reinforced, so that it is possible to easily handle after heating.

According to an eighth aspect of the present invention, the storage container having the opening according to any one of the first to seventh aspects is filled with a solid food material and heat-treated, and then the opening is hermetically sealed. A method for producing a food characterized by
The food obtained by heat treatment due to the presence of the small corrugated uneven ribs does not adhere to the inner wall of the container and is easily peeled off from the container,
Consists of large corrugated ribs and small corrugated ribs for the effects of changes in container material strength due to heating during heat treatment, etc., and changes in internal pressure due to temperature changes inside the container after hermetic sealing. The corrugated ribs with a heavy structure are formed and the side walls of the container are structurally reinforced, so there is no deformation such as blisters or dents, and it can be easily sealed to preserve the texture and flavor. The remarkable effect that the food excellent in property can be manufactured easily is produced.

The food produced using the production method of the present invention is excellent in texture and flavor, does not adhere to the inner wall of the container, easily peels off from the container, and is sealed and packaged so that the texture and flavor are maintained as they are. While having the remarkable effect of being able to preserve,
Easy handling after heating by using a container in which a corrugated rib having a double structure composed of a large corrugated rib and a small corrugated rib is formed and the side wall of the container is structurally reinforced. There is a further effect that food can be easily provided.

It is explanatory drawing explaining the container of this invention with which a solid food raw material is filled and heat-processed. It is explanatory drawing explaining the container of this invention which filled the solid food raw material, heat-processed, and sealed the opening part hermetically. (A)-(h) is explanatory drawing explaining the other example of the wave shape uneven rib of the double structure which consists of a large wave shape uneven rib and a small wave shape uneven rib. It is explanatory drawing explaining an example of the manufacturing method of the foodstuff of this invention. It is explanatory drawing of the container used by the Example and the comparative example.

Next, an embodiment of the present invention will be described in detail with reference to FIGS.
As shown in FIGS. 1 and 2, a storage container (hereinafter referred to as a container of the present invention) 1 that also serves as a food production container of the present invention has an opening 2, and the solid food from the opening 2. It is a container that can be used not only for production but also for storage of foods that are filled with the raw material 3 and heat-treated and then hermetically seal the opening 2 using the lid film 12.
The container 1 of the present invention is, for example, a container having heat resistance and barrier properties that can be sold as a product.

As shown in FIG. 1, the container 1 of the present invention has a plurality of convex ribs 4 and concave ribs 5 along the vertical direction of the container side wall 10 as viewed from the inside of the container 1. Are provided with a large corrugated rib 6 having a plurality of continuous ribs.
FIG. 1 is a cross-sectional explanatory diagram for explaining AA as a cross section.
The large corrugated uneven rib 6 has a container side wall inner surface 15 and a container side wall outer surface 16 when the AA cross section in the circumferential direction of the substantially central height of the container side wall 10 is viewed. An inner surface 15 and an outer surface 16 are formed substantially parallel over the entire circumference, and the container side wall 10 itself forms an uneven shape.

The pitch P of the convex rib 4 and the concave rib 5 is the size and shape of the container 1 of the present invention, the type of the solid food raw material 3 and the heat-treated food, the amount to be filled in the container 1, the solid food in the container 1 Depending on the temperature and time when the raw material 3 is filled and heat-treated, the storage temperature and time, etc., the plurality of convex ribs 4 and concave ribs 5 along the vertical direction of the side wall 10 of the container 1 are at a predetermined pitch P. By providing a large corrugated rib 6 having a plurality of alternating circumferentially-arranged ribs, the container 1 is strengthened, and even if heat-treated, the strength of the container 1 does not decrease and can be withstood. In addition, it is preferable to be designed, designed and determined so as to be resistant to deformation under reduced pressure after hermetic sealing so that deformation such as swelling and dent does not occur.
If the container 1 of the present invention undergoes deformation such as blisters or dents due to heat treatment, the contents will flow out before sealing, or a proper hermetic seal will not be possible. This makes it impossible to produce foods with excellent safety that can be stored for a long time.
In addition, if the container 1 of the present invention undergoes deformation such as swelling or dents due to changes in internal pressure due to temperature changes inside the container after hermetically sealing, the container 1 cannot be normally transported and the hermetic sealability cannot be maintained. This makes it impossible to produce foods with excellent texture and flavor, and foods with excellent safety that can be stored for a long time.
The pitch P and the respective uneven shapes may be regularly continuous in the circumferential direction or may be irregularly changed.

The large corrugated uneven ribs 6 are formed on the inner and outer surfaces of the container on the concave rib 5 when viewed from the inside of the container 1, and are parallel to the large corrugated uneven ribs 6. A small corrugated uneven rib 6 ′ composed of a convex rib 4 ′ and a concave rib 5 ′ is formed.
The small corrugated concave / convex rib 6 ′ may have a concave / convex shape in the container side wall 10 itself as in the case of the large corrugated concave / convex rib 6, but unlike the large corrugated concave / convex rib 6, In some cases, a small corrugated uneven rib 6 ′ is formed in a state protruding only on the inner wall surface of the container side wall 10.
And the food 13 obtained by heating cooking by the presence of small corrugated-shaped uneven rib 6 'does not adhere to the inner wall of the container 1 and easily peels off from the container, and it is difficult to feel hot even when heated in a microwave oven or the like. There is an effect that the container can be held with bare hands.
In particular, the maximum pitch in the food 13 after cooking the whole solid food material 3 filled in the container 1 with the pitch p of the adjacent convex ribs 4 ′ or concave ribs 5 ′ of the small corrugated uneven ribs 6 ′. By designing the food 13 constituting the mass to be shorter than the length of each shortest portion of the food 13, the food 13 constituting the maximum mass is hardly attached to the inner wall of the container 1, that is, most of the food 13 is attached to the side wall 10 of the container 1. There is an effect that it is difficult to adhere to the inner wall of the film and it is easy to peel off.
Similar to the large corrugated ribs 6, the pitch p and the respective uneven shapes may be regularly continuous in the circumferential direction or may be irregularly changed.

  The container 1 of the present invention has a double-surfaced corrugated concave / convex rib made up of a large corrugated concave / convex rib 6 and a small corrugated concave / convex rib 6 ′, so the surface area of the container side wall is large, and the container 1 is heated efficiently from the outside, and the steam generated in the container 1 is moved upward through the corrugated ribs having a double structure, and the solid food material filled in the container 1 Since it is supplied in 3, the heat efficiency at the time of cooking is good, the heat distribution at the time of cooking can be made uniform, and the food with excellent texture and flavor can be produced by cooking evenly in a short time. Can do.

Moreover, the bottom part 7 of the container 1 of this invention is formed with the dotted | punctate and / or wavy bottom part unevenness | corrugation 8 with pitch p '.
10 is a container side wall, 11 is a flange.
After forming bottom irregularities 8 such as dots and undulations on the bottom 7 of the container 1 of the present invention, and the pitch p ′ of the bottom irregularities 8 heats the all-solid food material 3 filled in the container 1. Is designed to be shorter than the length of each shortest portion of the food 13 that constitutes the maximum mass in the food 13, the food 13 constituting the maximum mass becomes difficult to adhere to the inner surface of the bottom 7 of the container 1, that is, most This makes it difficult for the food 13 to adhere to the inner surface of the bottom 7 of the container 1 and makes it easier to peel off.
In addition, by forming the bottom irregularities 8, the majority of the food 13 has a reduced contact area with the inner surface of the bottom 7 of the container 1, and steam generated by cooking is cooled and condensed. Since moisture or the like is held on the inner surface side of the bottom portion 7 of the bottom unevenness 8, moisture or the like condensed on the food 13 becomes difficult to come into contact, so that the food 13 has an effect of maintaining a uniform moisture content.

  As described above, after filling the solid food material 3 from the opening 2 and cooking with the heat treatment apparatus 21 and / or the heat treatment apparatus 21b as shown in FIG. As described above, the opening 2 of the container 1 is completely sealed by the sealing device 23 using, for example, the lid material film 12 by a heat sealing machine and hermetically packaged. 2 in FIG. 2 is the food cooked by heating.

When the container 1 of the present invention is a packaging container that can be sold as a product, for example, when a container having excellent heat resistance and excellent barrier properties and design is used, the container 1 of the present invention can be used for manufacturing and sealed packaging. Therefore, the food texture and flavor of the food can be maintained and preserved, so that it can be used for food storage.
The container 1 of the present invention in which the food 13 is hermetically packaged can be tasted by heating with a microwave oven or the like, and can have the heated container with bare hands.

  3 (a) to 3 (h) show other examples of the corrugated uneven rib having a double structure including the large corrugated uneven rib 6 and the small corrugated uneven rib 6 '.

  FIG. 3A shows a small corrugated uneven rib on the inner surface and outer surface of any side wall of the container on the convex rib 4 and concave rib 5 of the large corrugated uneven rib 6 when viewed from the inside of the container 1. This is an example in which 6 ′ is formed.

  FIG. 3 (b) shows a small corrugated uneven rib 6 only on the inner and outer surfaces of the container side wall in the vicinity of the wave front on the concave rib 5 of the large corrugated uneven rib 6 when viewed from the inside of the container 1. This is an example of forming '.

  FIG. 3 (c) shows a small corrugated uneven rib 6 on the inner and outer surfaces of about 50% or more of the container side wall on the concave rib 5 of the large corrugated uneven rib 6 as viewed from the inside of the container 1. This is an example of forming '.

FIG. 3 (d) shows that the corrugated surface wave state of the outer surface of the large corrugated rib 6 is maintained on the concave rib 5 of the large corrugated rib 6 as viewed from the inside of the container 1. However, in this example, a small corrugated uneven rib 6 ′ is formed only on the inner surface of the container side wall.
As a method for forming the small corrugated uneven rib 6 'only on the inner surface of the container side wall, specifically, for example, the large corrugated uneven rib 6' and the small corrugated uneven rib 6 'are simultaneously formed. Examples thereof include an example in which a small corrugated uneven rib 6 ′ formed in advance is adhered and formed.

  In FIG. 3 (e), a small corrugated uneven rib 6 'is formed on the inner and outer surfaces of the container side wall above the concave rib 5 of the large corrugated uneven rib 6 as viewed from the inside of the container 1. Although it is an example, it is an example in case the convex rib 4 is flat shape. Note that the length of the flat shape of the convex rib 4 may be the same or different.

  FIG. 3 (f) shows a small corrugated uneven rib 6 ′ formed on the inner and outer surfaces of the container side wall above the concave rib 5 of the large corrugated uneven rib 6 as viewed from the inside of the container 1. As an example, the shape of the convex rib 4 is different from the shape of the convex rib 4, and the flat ribs 14 are provided on both shoulders of the convex rib 4 or the concave rib 5.

  FIG. 3G shows a small corrugated uneven rib 6 ′ formed on the inner and outer surfaces of the container side wall on the concave rib 5 of the large corrugated uneven rib 6 when viewed from the inside of the container 1. Although it is an example, it is an example in case the shape of the concave rib 5 changes with positions.

  In FIG. 3 (h), a small corrugated uneven rib 6 ′ is formed on the inner and outer surfaces of the container side wall on the concave rib 5 of the large corrugated uneven rib 6 as viewed from the inside of the container 1. Although it is an example, it is an example in case the shape of the concave rib 5 and the convex rib 4 each has a flat shape, and the uneven rib 6 is a square shape.

  In the present invention, it is necessary that the solid food 3 is filled in the container 1, heat-treated, sealed, and packaged food can be produced. In order to enable long-term storage, a sterilization process is necessary. It is preferable to carry out the sterilization process to the sealing process in a clean environment to produce aseptically packaged food.

Next, an example of the food production method of the present invention will be described.
FIG. 4 is an explanatory view for explaining an example of the method for producing a food of the present invention.
The food production apparatus A used in the present invention includes a clean environment 20, a heat treatment apparatus (sterilization apparatus) 21b as a sterilizer installed in the clean environment 20, a heat treatment apparatus (rice cooking apparatus) 21 as a cooking apparatus, A sealing device 23 disposed at the outlet 22 of the clean environment 20 is sequentially arranged side by side.

Next, an example in the case of manufacturing aseptic food using the food manufacturing apparatus A will be described.
The direction indicated by the arrow of the container 1 filled with the solid food material 3 after filling the container 1 with the opening 2 with the solid food material 3 and preferably sterilized by heating in the first heat treatment. Then, the clean environment 20 is introduced into the clean environment 20 through the inlet 24 while maintaining the aseptic condition in the clean environment 20.
Before or after filling the solid food material 3 into the container 1, heat treatment can be performed in advance, or treatment such as water absorption, dipping, washing, and rice washing can be performed.
For example, after washing polished rice, it is immersed in water and impregnated with water. After draining, the rice is weighed and a predetermined amount is filled in the container 1.

  Next, an appropriate amount of cooking water and / or seasoning liquid or appropriate ingredients is added using an addition device (not shown) installed in the clean environment 20, and this container 1 is placed in the clean environment 20 from the direction of the arrow. It is accommodated in a known heat treatment apparatus 21 installed and cooked and cooked as a second heat treatment using steam.

The heat treatment of the present invention includes a heating step capable of heat-treating the solid food material filled in the container. Specifically, for example, various kinds such as stew, rice cooking, baking, drying, sterilization, etc. It is a heating process, and furthermore, it can be heat-treated once or a plurality of times by combining one or more kinds of various heating processes.
The heating method of the heat treatment apparatus of the present invention is not limited as long as the solid food raw material filled in the container with the solid food raw material can be heated. Specifically, for example, known heating such as hot air, steam, various heaters, and microwaves can be used. Any method can be used.
The heating method is preferably steam from the viewpoint of heat conduction to the solid food. Various kinds of steam are used as the steam, and specifically, for example, saturated steam or superheated steam can be used.
Furthermore, the rice cooking / cooking conditions of the heat treatment apparatus are appropriately selected for a predetermined time at a predetermined temperature and a predetermined pressure depending on the solid food raw material to be cooked / cooked, and cooked / cooked.
Cooking water / cooking water is not particularly limited. Specifically, for example, various liquids such as seasonings and sauces can be used in addition to water, and various flavored solid food ingredients are boiled and cooked. It is also possible.
When cooking rice or cooking, a lid may be applied as necessary.
Solid food materials can be used alone or in combination of two or more.

  The water used in the present invention is not particularly limited. Specifically, for example, known water such as tap water, distilled water, ion-exchanged water, or pure water can be used.

After cooking and cooking, the container 1 filled with aseptic food after cooking and cooking is sealed with the sealing device 23 disposed at the outlet 22 of the clean environment 20 at the opening 2 of the container 1.
For example, it is completely sealed with a heat sealing machine and sealed. It may be replaced with an inert gas such as nitrogen, or an oxygen scavenger may be enclosed.
Then, after sealed packaging, it is stored in a storage room maintained at an appropriate temperature as it is or packed in a predetermined number of cardboard boxes, and is used for transportation and transportation.
As described above, aseptic food can be produced while maintaining the aseptic condition in the clean environment 20.

The solid food material used in the present invention is not particularly limited, but is not a gas / liquid, is not fluid, and has a size, shape, etc. that can be filled in a container. Any solid food material that can be used as food is acceptable.
As the solid food material, a food material including a grain or a grain-derived material is preferable. The grain in the present invention specifically refers to, for example, rice and other cereals other than rice, for example, barley, hato barley, millet, scarlet, corn, wheat, rice bran, rice bran, white sorghum, etc. And legumes such as red beans, soybeans, broad beans, peanuts, bean paste, green beans, peas, mung beans, etc. Can do.
These cereals may be subjected to washing, dipping, cutting, germination, preheating and the like in advance.

The rice usually used in particular is glutinous rice, glutinous rice, brown rice, black rice or the like, and these may be washed soaked rice, non-washed soaked rice, or unsoaked rice.
Examples of the cereal grains that are usually used in particular include wheat, straw, acne, straw, soybeans, red beans, black beans, mung beans, sesame, amaranth, corn and the like.

  The cereal-derived solid food material as used in the present invention is a product obtained by pulverizing cereals, adding water, etc., bundling them, and drying them as necessary. Specifically, for example, pasta (long pasta) For example, short pasta such as spaghetti and linguine, for example, couscous, gnocchi, and penne), noodles such as udon, samen, rice noodles, vermicelli, and Japanese soba noodles.

The pitch p of the adjacent convex rib 4 ′ or the concave rib 5 ′ of the small corrugated uneven rib 6 ′ or the pitch p ′ of the bottom unevenness 8 formed on the bottom 7 of the container 1 is filled in the container 1. By designing the food product 13 constituting the maximum mass on the inner wall of the container 1 by designing it to be shorter than the length of each shortest portion of the food product 13 constituting the maximum mass in the food product 13 after cooking the all-solid food material 3. It becomes difficult to adhere, that is, most of the food 13 is less likely to adhere to the inner wall of the container 1, and has an effect of being easily peeled off. By examining the size of the food obtained by cooking the solid food material to be used in advance, the container 1 Can be designed as appropriate.
When the food size varies, the size distribution is measured, and the pitch p or p ′ may be determined based on the size of the majority.
For example, when cooking rice as a raw material mainly composed of polished rice, the particle size distribution of the cooked rice is measured, and the shortest portion is 2 mm or less in length, 20%, and the same length is 4 mm or less. If the result is 70% and 10% of the same length is 6 mm or less, the pitches p and p ′ are set to 2 mm on the basis of 4 mm occupying 70% of the maximum distribution area.
Further, the pitch P of the adjacent convex ribs 4 or concave ribs 5 of the large wave-shaped uneven ribs 6 is set so that the small-wave-shaped uneven ribs 6 ′ are arranged so that the whole solid food raw material 3 filled in the container 1 is used. It is preferable that the length of each of the shortest portions of the food 13 constituting the maximum mass in the food 13 after cooking is at least twice as long. For example, the average of the first joint of the adult thumb If the width is shorter than the width, even when an adult holds the container with his bare hands, the contact area between the finger surface and the container surface is reduced, so it is difficult to feel hot. Specifically, for example, it is preferable to make the length shorter than 35 mm. .

  Although an example in the case of manufacturing aseptic food using the food manufacturing apparatus A was shown, the container 1 is filled with the solid food raw material 3, and the heat treatment is performed once without using the clean environment 20 as described above. Only by adding an appropriate amount of cooking water and / or seasoning liquid or appropriate ingredients using an addition device not shown, this container 1 is accommodated in a known heat treatment device (rice cooking device) 21 from the direction of the arrow. After cooking and cooking with steam, cooking and cooking, the container 1 filled with the cooked and cooked food 13 is sealed with the sealing device 23 at the opening 2 of the container 1 to produce food. You can also

Moreover, when using the cereal-derived solid food material 3, the container 1 is sterilized by only one heat treatment, and then the container 1 is sealed with a sealing device 23 disposed at the outlet 22 of the clean environment 20 without cooking or cooking. Aseptic food may be produced by sealing the opening 2 of the container 1.
In addition, in order to obtain a food with excellent storage stability, after sealing and sealing, cooking water or seasoning liquid that is sterilized by a known method or adjusted to control bacteria in food raw materials by a known method Can be added.

  Examples of cooked rice used in the present invention include, for example, raw materials derived from meat such as chicken, beef, grilled pork, clams, squid, octopus, scallops, shrimp, salmon, salmon, hijiki, List raw materials derived from fish and shellfish such as kelp, vegetables such as burdock, carrot, salmon, asparagus, kidney beans, ginger, chestnut, shiitake mushroom, shimeji, processed foods such as konjac, fried chicken, bamboo rings and grilled pork Can do.

  The temperature of the steam used in the present invention is higher than the minimum necessary heat treatment temperature for sterilization / cooking in the solid food material 3 to be used, and the heat resistance temperature of the container to be used is an essential condition. For example, when cooking water is added, In consideration of the fact that the cooking water reaches 98 ° C. or more early and the rice cooking / cooking proceeds efficiently and satisfactorily and there is no deformation of the container, specifically, for example, saturated steam of 99 to 120 ° C., A superheated steam of 101 to 160 ° C. can be preferably used.

  In order to obtain aseptic food in the present invention, the clean environment of the food production apparatus used as necessary is not particularly limited as long as it is suitable for the production of aseptic food. For example, like a clean room, The entire room can be kept clean, and from sterilization to sealed packaging can be a single device, or each device can be connected by a clean tunnel. Good.

  Examples of the clean environment used in the present invention include, for example, aseptically performed in a clean room or a clean booth of class 100 to class 10000 according to the NASA standard. When it is performed in a clean environment, the equipment to be used and the cooking water and / or seasoning liquid to be added should be sufficiently sterilized and sterilized.

  The food production apparatus used in the present invention can be equipped with an addition device (not shown) as described above so that cooking water and / or seasoning liquid or appropriate ingredients can be added in an appropriate amount. A device capable of performing topping and the like can be provided according to the situation.

The container used in the present invention is open at the top, and the shape is not particularly limited, such as a circle, polygon, ellipse, tray shape, cylindrical shape, deep shape, etc., and the material is a plastic with barrier properties, heat resistance and water resistance However, ceramics, metals, or a combination of these may also be used for improving barrier properties and strength.
Examples thereof include a gas barrier heat-resistant container package, a plastic container made of a heat-resistant synthetic resin film and / or a metal foil laminate.
The lid material film (not shown) used in the present invention is appropriately selected in consideration of the sealability with the container.
For example, a heat-resistant container that can be sold as a product has an ethylene-vinyl alcohol copolymer resin as an intermediate layer, and upper and lower layers are laminated with polypropylene and molded into a container. “Silica-deposited PET / nylon / polyethylene sealant” or the like can be used.

  Furthermore, when heating the food 13 with a microwave oven, when using it as a container, it is preferable to use the material which can be heated efficiently with electromagnetic waves.

As the container used in the present invention, a heat-resistant container serving as a packaging container that can be sold as a product can be used.
When a heat-resistant container that is a packaging container that can be sold as a product is used as a container, there is no need to transfer the container to the packaging container, the process can be simplified, and aseptic food with uniform quality can be used in that state. Can be sealed and packaged into products.

  As a container, a heat-resistant container that is a packaging container that can be sold as a product can be preferably used as long as it has an opening at the top and an outward flange-like heat seal part at the periphery of the opening. Polygon, ellipse, tray shape, cylindrical shape, deep shape, etc. are not particularly limited.

  The description of the above embodiment is for explaining the present invention, and does not limit the invention described in the claims or reduce the scope thereof. Moreover, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim.

  For example, in the description of the above-described embodiment, examples of cooking / cooking in a batch manner are shown, but the present invention is not limited to these examples. Further, pressurization / decompression can be performed as necessary.

  For example, in addition to cooking and cooking in batch mode, it can be cooked and cooked continuously, and can be done manually, but it can also be done automatically by controlling with a control device, or a combination of these It can also be done.

  For example, when a plurality of containers containing solid food raw materials are stored in a rice cooking / cooking apparatus and cooked / cooked, a plurality of containers can be housed in the apparatus separately, but they may be arranged in an orderly manner, or in an orderly manner. Things can be carried out in layers at intervals of two or more stages, and can be cooked and cooked by supporting and fixing things arranged in order on a frame or the like, or a combination thereof.

  EXAMPLES Next, although an Example demonstrates this invention in detail, unless it deviates from the main point of this invention, it is not limited to these Examples. In the following examples, “%” represents mass%.

(Examples 1-2)
Example of producing aseptic food (sterile cooked rice) by sterilizing solid food raw material 3 (milled rice) as the first heat treatment and cooking rice as the second heat treatment using the food production apparatus A shown in FIG. Indicates.
FIG. 5 shows the container used.
In Example 1, a heat-resistant plastic container 1 in which large corrugated uneven ribs 6 are formed and small corrugated uneven ribs 6 ′ are formed on the inner surface and the outer surface of all portions on the large corrugated uneven ribs. It was used.
First, after washing the polished rice, it was immersed in water at room temperature for 1 hour to impregnate the water, drained, and then weighed 110 g of the solid food material 3 (polished rice) (water content 30%), and the product as it was The container was filled in a heat-resistant plastic container 1 (opening: 130 mmφ, volume: 400 mm liter, material: PP / EVOH / PP laminate) 1 that can be used as

From the direction indicated by the arrow in the container 1 filled with the solid food raw material 3 (milled rice) in the clean environment 20 of the food production apparatus A, the entrance 24 of the clean environment 20 is maintained while maintaining the sterility of the clean environment 20. After that, it was introduced into the clean environment 20.
At the inlet 24 of the food production apparatus A, a heat treatment apparatus 21b for performing sterilization by performing the first heat treatment is installed.
After adding 90 g of cooking water using an addition device (not shown) installed in the clean environment 20 and sterilizing the container 1 in the heat treatment device 21b installed at the inlet 24 of the clean environment 20 from the direction of the arrow, It accommodated in the well-known heat processing apparatus (rice cooking apparatus) 21 installed in the clean environment 20, and cooked for 20 minutes using 100 degreeC saturated steam. And it stood to cool for 5 minutes.

  After cooking and allowing to cool, the container 1 filled with aseptic food after cooking is sealed with a sealing device 23 disposed at the outlet 22 of the clean environment 20 with the opening 2 of the container 1 as a cover material (deposition PET film) / Sealing material).

  And after sealing packaging, it packed in a predetermined number of corrugated cardboard boxes, and stored in the storage maintained at appropriate temperature.

  In Example 2, hermetic packaging was performed in the same manner as in Example 1 except that small corrugated uneven ribs 6 'were formed on the inner and outer surfaces of the recesses 5 on the large corrugated uneven ribs. 1 and the test results are shown in Table 1 as in Example 1.

Table 1 shows the pitch P (shown as large wave P in Table 1) and the pitch p (shown in Table 1) of the large corrugated ribs 6 'of the heat-resistant plastic container 1 used. A small wave location indicating the size (mm) of the small wave-shaped concave / convex rib 6 ′ and the portion of the large corrugated concave / convex rib 6 ′ of the container 1 formed in the container 1, and the container The pitch p ′ of the concavo-convex formed on the bottom 7 of 1 (denoted as point-like in Table 1) or the undulation (denoted as wavy in Table 1) p ′ (indicated by the bottom p ′ in Table 1) And the main solid food ingredients (denoted as main ingredients in Table 1) that constitute the type and maximum mass of the solid food ingredients, and after heat treatment (cooking), a hermetically sealed Before, or after heat treatment (cooking), after sealing and sealing, the shape of the container 1 before opening, After removal by its own weight to the inside of the food upside down and opened preliminary particle in the number of food remaining attached to the wall and bottom of the container 1,
Also, in the column of the state after the microwave heating, whether the seal 12 of the container 1 is peeled off a little by a test method to be described later, and when heated by the microwave oven and then taken out by hand from the microwave oven, Shown together.

In the small wave location, the whole unevenness is described in Table 1 as shown in FIG. 3A. All the convexes 4 and the concave ribs 5 of the large corrugated uneven rib 6 of the container 1 are described. It shows that convex ribs 4 'and concave ribs 5' of small corrugated irregular ribs 6 'are formed on the inner and outer surfaces of the container.
In all the small wave locations, the concave portion is described in Table 1 because the inner surface of the entire portion of the concave portion 5 of the large corrugated shape irregular rib 6 of the container 1 as shown in FIG. And it shows that the convex rib 4 'and the concave rib 5' of the small corrugated uneven rib 6 'are formed on the outer surface.
In the small wave location, “-” in Table 1 indicates that the small corrugated uneven rib 6 ′ is not formed on the large corrugated uneven rib 6 of the container 1.

(Comparative Examples 1-3)
In Comparative Example 1, the large corrugated uneven rib 6 was formed in the heat-resistant plastic container 1 used, but hermetically sealed in the same manner as in Example 1 except that the small corrugated uneven rib 6 ′ was not formed. The test was conducted in the same manner as in Example 1, and the test results are shown in Table 1.
In Comparative Example 2, the large corrugated uneven rib 6 was formed on the heat-resistant plastic container 1 used, but the small corrugated uneven rib 6 'was not formed, and the bottom unevenness was not formed on the bottom 7 of the container 1. Except for the above, it was sealed and packaged in the same manner as in Example 1 and tested in the same manner as in Example 1. The test results are shown in Table 1.
In Comparative Example 3, the heat-resistant plastic container 1 used was sealed in the same manner as in Example 1 except that the large corrugated uneven rib 6 was not formed and only the small corrugated uneven rib 6 ′ was formed. Package and test as in Example 1 and the test results are shown in Table 1.

(Test method)
(1) Judging method of the shape of the container 1 After filling the solid food raw material 3 in the heat-resistant plastic container 1 and storing it in the heat treatment apparatus (rice cooking apparatus) 21 for cooking and cooking, the container 1 before sealing and sealing. Seal whether there is any deformation such as dents or crushing by visual inspection without opening the container 1 that has been cooled to room temperature after it has been sealed and sealed, whether it can be transported, the contents spilled out, It was determined whether the seal was peeled off or the food was crushed, and the results were expressed as follows.
A: There is no deformation such as bulge or dent, and there are no problems such as conveyance problems, outflow of contents, sealing properties, and crushing.
○: There are few deformations such as bulges and dents, and there are no problems such as conveyance problems, outflow of contents, sealing properties, and crushing.
X: There are many deformations such as bulges and dents, and there are problems such as conveyance problems, outflow of contents, sealing properties and crushing.

(2) Method for confirming the number of remaining food grains After the test of (1) above (after sealing and sealing), after storing at room temperature for 12 hours or more, the temperature near the center of the cooked food in the container is set to 90. Heat up to ℃, open, invert and hold for 15 seconds, take out the food inside due to its own weight, then count the number of food particles remaining on the wall and bottom of container 1 A method of measuring,
The number of food particles remaining on the wall and the bottom of the container 1 was counted one by one, and the result was represented by the measured number.
In the case of noodles, the number of remaining noodles was used instead of grains.

(3) Test in microwave oven Container 1 obtained by sealing and packaging in each example and each comparative example was stored at room temperature for one week, and seal 12 was peeled off a little and put into a 500 watt microwave oven. Heating for 2 minutes and 30 seconds, and judging whether it felt hot or not when taking out the side wall 10 of the container 1 from the microwave oven after heating with the bare hand. The results are shown in the column as follows.
(Double-circle): Since the heat was not felt, the handling of the container was easy after heating.
○: A little heat was felt, but the container was easily handled after heating.
Δ: Feeling hot, but the container could be handled after heating.
X: Careful handling of the container after heating was necessary to feel the heat strongly.

In Examples 1 and 2 from Table 1, there is no or little deformation such as bulges and dents, there are no problems of conveyance, outflow of contents, sealability or crushing, and the wall or bottom of the container 1 The number of food particles adhering and remaining is very small, and after heating in a microwave oven, it is difficult to feel hot even if the side wall 10 of the container 1 is held with bare hands, whereas in Comparative Example 1, bulges, dents, etc. However, since the small corrugated rib 6 ′ was not formed, the number of food particles adhering to the wall and the bottom of the container 1 was very large. In Comparative Example 2, the container 1 The number of food particles that remain attached to the bottom of the container is very large, and after heating in a microwave oven, if you hold the side wall 10 of the container 1 with your bare hands, you will feel hot, and there will be deformation such as swelling and dents I understand.
In Comparative Example 3, the number of food particles remaining on the wall or bottom of the container 1 is very small. However, after heating in the microwave oven, the container 10 feels hot when it is held with bare hands. It can be seen that there are deformations such as bulges and dents.

(Example 3)
In Example 3, the container 1 of the present invention described in Table 1 was used, and [boiled pasta (raw noodles)] was used as the solid food material 3, and after being boiled, heat treatment was performed only once. Sterilized and cooked, allowed to cool, sealed and packaged, and tested in the same manner as in Example 1. The test results are shown in Table 1.

Example 4
In Example 4, the container 1 of the present invention described in Table 1 was used, and [70% rice, 20% wheat, 10% rice bran] was used as the solid food material 3, and the second heat treatment was performed at 140 ° C. Except that the rice was cooked for 13 minutes using this superheated steam, it was sealed and packaged in the same manner as in Example 1, tested in the same manner as in Example 1, and the test results are shown in Table 1.

(Example 5)
In Example 5, using the container 1 of the present invention described in Table 1 and using [rice, carrot, chicken, fried chicken, burdock, konjac] as a solid food material 3, cooking using an unillustrated addition device Except for adding 100 g of water, it was sealed and packaged in the same manner as in Example 1 and tested in the same manner as in Example 1. The test results are shown in Table 1.

In Tables 3 to 5, Examples 3 to 5 have no or little deformation such as bulges and dents, and the number of food particles adhering to the wall and bottom of the container 1 is very small or there is no adhesion.
In Example 5, the carrots, chicken, fried oil, burdock, and konjac peeled well.
Further, after heating in the microwave oven, it was difficult to feel hot even if the side wall 10 of the container 1 was held with bare hands.

(Example 6)
A food product was obtained in the same manner as in Example 1 except that the container 1 was filled with solid food material 3 (milled rice), only one heat treatment (rice cooking) was performed, and the sealing was not performed in a clean environment 20. As a result of testing in the same manner as in Example 1, the number of residual grains was as small as 7 grains and peeling was good.
Further, after heating in the microwave oven, it was difficult to feel hot even if the side wall 10 of the container 1 was held with bare hands.

  In the food production and storage container of the present invention, since the corrugated uneven rib having a double structure composed of the large corrugated uneven rib and the small corrugated uneven rib is formed, the container is formed by the large corrugated uneven rib. The side walls are reinforced, and even when heat-treated, the strength of the container does not decrease due to heating, and it is strong against deformation under reduced pressure after hermetic sealing, so that deformation such as swelling and dents does not occur. It is possible to produce foods with excellent feel and flavor, and because of the presence of small corrugated ribs, the contact area is small even when foods obtained by heat treatment adhere to the inner wall of the container. It is easy to peel off, and similarly, because it has a small contact area, it can be held easily with bare hands even when heated with a microwave oven, etc. Maintain and keep Since it, so a marked effect of a marked effect that can be used for storage of food, industrial value is very large.

A Food production apparatus used in the present invention p, p ′, P Pitch 1 Container 2 Opening 3 Solid food material 4, 4 ′ Convex rib 5, 5 ′ Concave rib 6 Large corrugated corrugated rib 6 ′ Small wave Mold shape uneven rib 7 Bottom 8 Bottom uneven 9 Bottom recess 10 Container side wall 11 Flange 12 Lid film 13 Food 14 Flat part 15 Inner side of container side wall 16 Outer surface of container side wall 20 Clean environment 21, 21b Heat treatment device 22 Exit 23 Sealing Device 24 entrance

Claims (8)

A storage container that also serves as a food production container that hermetically seals the opening after filling a solid food material into a storage container having an opening and heat-treating the container,
A plurality of concave ribs and convex ribs along the vertical direction of the container side wall are provided with a large corrugated concave / convex rib formed in a circumferential direction, and the concave corrugated ribs and / or convexes of the large corrugated convex / concave ribs are provided. At least a part of the rib is formed with a small corrugated rib having at least two sets of small concave ribs and convex ribs in parallel with the large corrugated rib. A container for food production and storage.   2. The food production according to claim 1, wherein the small corrugated uneven ribs are formed on the inner surface and the outer surface of the concave rib portion when viewed from the inside of the large corrugated uneven rib. Storage container.   The food production and storage container according to claim 1 or 2, wherein the heat treatment method is steam heating.   The container for food production and storage according to any one of claims 1 to 3, wherein the solid food raw material contains one or more combined grains.   The pitch of the adjacent convex ribs or concave ribs of the small corrugated ribs is the shortest of the individual foods constituting the maximum mass in the food after the heat treatment of the whole solid food material filled in the container. The container for food production and storage according to any one of claims 1 to 4, wherein the container is shorter than the length of the portion.   A dotted and / or wavy bottom unevenness is formed at the bottom of the container, and the pitch of adjacent convexities or recesses of the bottom unevenness after the heat treatment is performed on the whole solid food material filled in the container The food production and storage container according to any one of claims 1 to 5, wherein the food production and storage container is shorter than the length of each shortest portion of the food constituting the maximum mass in the food.   The container for food production and storage according to any one of claims 1 to 6, wherein the storage container that also serves as the food production container is a container that can be heated in a microwave oven.   A storage container having an opening according to any one of claims 1 to 7 is filled with a solid food material and heat-treated, and then the opening is hermetically sealed. Law.

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