JP5467225B2 - Method for producing filled tofu - Google Patents

Description

  The present invention relates to a method for producing filled tofu in which a mixed liquid of soy milk and a coagulant is filled in a filling recess of a container, and the filling recess is sealed with a lid film.

Patent document 1 and 2 describe the manufacturing method of filling tofu. The filled tofu described in these publications is produced as follows.
(1) As shown in FIG. 1, the container 1 is arranged in a horizontal posture, and the filling recess 2 of the container 1 is filled with a mixed solution 8 of soy milk and a coagulant. The container 1 is manufactured by molding a plastic sheet. This container 1 is provided with a bowl-shaped sealing plane 3 around the filling recess 2. The mixed liquid 8 is filled in a larger amount than the inner volume of the filling recess 2 so as to partially overflow the filling recess 2. This is for removing bubbles contained in the mixed liquid 8 to be filled.
As shown in FIG. 1, the liquid mixture 8 filled in the filling recess 2 protrudes upward from the seal plane 3 due to surface tension. In this state, the bubbles contained in the mixed liquid 8 are floated.
(2) The scraper is moved along the sealing plane of the container to scrape off the mixed liquid accumulated on the sealing plane. In other words, the mixed liquid above the sealing plane is overflowed and removed. At this time, bubbles floating above the mixed solution are removed together with the mixed solution.
(3) A lid film made of a plastic film is placed along the sealing plane of the container, and the lid film is heat-sealed to the sealing plane. The lid film that seals the opening of the container is welded to the sealing plane of the container, and is in close contact with the upper surface of the filled tofu filled in the filling recess and solidified with the coagulant.
Japanese Utility Model Publication No. 3-61892 Japanese Patent Laid-Open No. 5-284930

  The filled tofu produced in the above process fills the filling recess with a larger amount of the mixed liquid than the volume of the produced tofu, so that all the mixed liquid cannot be made into filled tofu. The mixed liquid overflowed from the filling recess is discarded without being filled with tofu. When the overflowing liquid mixture is reduced, bubbles are mixed in the filled tofu solidified in the filling recess. In particular, filled tofu, which is made smaller by dividing one tofu into a plurality, increases the ratio of the mixed solution that overflows and is discarded. In order to provide a sealing plane that heat-seals the lid film with a predetermined width between the adjacent filling recesses, the inner volume of the filling recesses becomes shallower than each filling recess divided from one filling recess. This is because the outer shape of the seal plane becomes larger. For example, as shown in FIG. 2, in a case where one filling tofu is divided into four by arranging filling recesses 2 in two columns and two rows, about 23% of the mixed liquid overflows and is discarded.

  The present invention has been developed for the purpose of solving this drawback. An important object of the present invention is to mix one filled tofu overflowing and discarding rather than producing one filled tofu, even though it is divided into a plurality of rows by dividing the filled tofu vertically and horizontally into multiple rows An object of the present invention is to provide a packed tofu packaged with a reduced amount of liquid and a method for producing the same.

  In the method for producing filled tofu according to claim 1 of the present invention, the container 1 is filled with a mixed liquid 8 of soy milk and a coagulant, and the lid film 6 is heat-sealed at the opening of the container 1 filled with the mixed liquid 8. Tofu is produced. In the method for producing filled tofu, the container 1 filled with the mixed liquid 8 has the filling recesses 2 arranged in rows and columns in a plurality of rows, and between the adjacent filling recesses 2 and on the outer peripheral surface of the filling recess 2. A container 1 having a flat sealing plane 3 for heat sealing the lid film 6 and having an overflow hole 4 in the sealing plane 3 between the filling recesses 2 arranged adjacent to each other is used. In the method for producing filled tofu, the container 1 is arranged in a posture in which the seal plane 3 becomes a horizontal plane, and the liquid mixture 8 having a liquid amount overflowing into the respective fill recesses 2 is filled. The filling recess 2 is filled with the mixed liquid 8 in a state of protruding from the surface, the scraper 7 is moved along the seal plane 3, and the mixed liquid 8 protruding upward from the seal plane 3 is scraped off, and then the seal plane 3 The lid recess 6 filled with the mixed liquid 8 is sealed by heat sealing the lid film 6.

In the method for producing filled tofu according to the present invention, four filling recesses 2 are arranged vertically and horizontally in two rows and two columns, and overflow occurs at the intersection of seal planes 3 provided in a cross shape between the four filling recesses 2. The container 1 provided with the holes 4 is filled with the mixed solution 8.

  In the method for producing filled tofu of the present invention, the filling recess 2 can be filled with 30 to 100 g of the mixed liquid 8.

  The manufacturing method of the filling tofu of this invention can use the container 1 which provided the perforation 5 which cut | disconnects each filling recessed part 2 in the sealing plane 3 provided in the boundary of the filling recessed part 2. FIG.

  The present invention reduces the amount of liquid mixture that overflows and is discarded compared to the production of one filled tofu, even though one filled tofu is divided into a plurality of rows by dividing the filled tofu vertically and horizontally into multiple rows. In addition, it has the feature that it can be made into filled tofu by using the mixed solution of soy milk and coagulant very effectively. This is because the present invention fills the container with a unique shape shown in FIG. The container 1 in this figure is provided with four filling recesses 2 to divide one filled tofu into four pieces. This container is formed into a shape with filling recesses in multiple rows and columns arranged in rows and columns on a plastic sheet, and a flat seal that heat-seals the lid film between adjacent filling recesses and the outer peripheral surface of the filling recesses A flat surface is provided, and in particular, an overflow hole for the mixed liquid overflowing from the filling recess is provided in the seal plane between the adjacent filling recesses.

When the mixed liquid is filled into the filling recess of the container in this figure, the liquid level of the mixed liquid protrudes as shown by the curved surface A in FIG. 4 due to surface tension. In contrast, when filling the mixture into the filling recess of the same shape without overflow hole, protrudes as shown by the curved surface B of FIG. The mixed liquid protruding as the curved portion 8A is scraped off by a scraper that moves along the sealing plane in a pre-process for heat-sealing the lid film. The protruding curved portion 8A is scraped off with a scraper, so that the bubbles floating here are removed together with the liquid mixture 8. The volume of the projecting portion of the curved surface A is smaller than the volume of the projecting portion of the curved surface B, and the amount of the mixed liquid scraped off by the scraper is reduced. For this reason, the filling tofu of the present invention and its manufacturing method use a container having an overflow hole between the filling recesses, scraping off the portion protruding from the filling recesses with a scraper, and overflowing from the filling recesses Thus, the amount of the mixed liquid discarded can be considerably reduced. Incidentally, as shown in FIG. 3, the filling tofu divided into four filling recesses had overflowed and discarded 23% by weight of the mixed liquid as described above when no overflow hole was provided. On the other hand, by providing the overflow hole, the amount of the liquid mixture that overflows and is discarded can be limited to 10% by weight. In addition to effectively using the mixed solution, this can reduce the cost of discarding the mixed solution, and can greatly reduce the manufacturing cost of the filled tofu overall.

  Embodiments of the present invention will be described below with reference to the drawings. However, the Example shown below illustrates the filling tofu and its manufacturing method for actualizing the technical idea of this invention, Comprising: This invention does not specify a filling tofu and its manufacturing method to the following. .

  Further, in this specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the examples are indicated in the “claims” and “means for solving problems” sections. It is added to the members. However, the members shown in the claims are not limited to the members in the embodiments.

  In the method for producing packaged tofu according to the present invention, a mixed liquid 8 of soy milk and a coagulant is filled in a container 1, and the lid film 6 is heat-sealed at the opening of the container 1 filled with the mixed liquid 8.

The container 1 used for the manufacturing method of the packaged filled tofu is shown in FIG. The container 1 in this figure is manufactured by thermoforming a plastic sheet. The container 1 shown in the figure is provided with two filling recesses 2 vertically and horizontally, that is, in two rows and two columns, and divides one filled tofu into four. The four filled tofu filled in the filling recess 2 each has a weight of 80 g and a total of four pieces of 320 g. However, the present invention does not specify the weight of the filling tofu filled in the filling recess as 80 g. In consideration of the number of filling recesses and the total weight, the mixed liquid filled in one filling recess can be , for example, 30 g to 100 g .

  The container 1 of FIG. 3 is formed in a tapered shape in which the opening of the filling recess 2 is rectangular and the filling recess 2 increases toward the opening. Furthermore, the container 1 in the figure is provided with a sealing plane 3 between adjacent filling recesses 2, that is, between rows and columns of filling recesses 2 arranged in a plurality of rows in a plurality of columns. Furthermore, a seal plane 3 is provided on the outer peripheral surface, and the seal plane 3 is provided along the outer periphery of each filling recess 2. The seal plane 3 is a plane portion that heat-seals the lid film 6 that seals the opening of the filling recess 2. Moreover, the container 1 is provided with the overflow hole 4 in the sealing plane 3 between the filling recessed parts 2 arrange | positioned adjacently. The container 1 in FIG. 3 is provided with four filling recesses 2 arranged in 2 rows and 2 columns in the vertical and horizontal directions, and overflow holes 4 are formed at the intersections of the seal planes 3 provided in a cross shape between the four filling recesses 2. Provided. The container 1 can drain the mixed liquid 8 overflowed from the four filling recesses 2 with one overflow hole 4.

  In the container 1 described above, the perforation 5 for separating each filling recess 2 is provided on the seal plane 3 provided between the filling recesses 2. Since the container 1 having this structure can be easily separated from the perforation 5 in a state where each filling recess 2 is filled with filled tofu, it is convenient, for example, when eating one or two filled tofu.

Filled tofu is manufactured in the following steps using the container 1 described above.
(1) Filling process of liquid mixture The container 1 is arrange | positioned in a horizontal attitude | position, and each liquid filling recessed part 2 is filled with the liquid mixture 8 of a soymilk and a coagulant. The mixed liquid 8 is filled in a larger amount than the inner volume of the filling recess 2, that is, an amount overflowing from the filling recess 2 in order to remove the contained bubbles. The amount of the liquid mixture filled in the filling recess 2 in this step is an amount that drains a part thereof from the overflow hole 4. However, in this step, it is not always necessary to drain the mixed solution 8 from the overflow hole 4, and the mixed solution 8 filled in the filling recess 2 is drained from the overflow hole 4 in the scraping step by the next scraper 7. The amount of the mixed solution can also be controlled. As shown in FIG. 4 , the liquid mixture 8 filled in a larger amount than the inner volume of the filling recess 2 protrudes from the opening of the filling recess 2 from the plane including the seal plane 3 as shown in FIG. 4. A curved portion 8A is formed. The curved portion 8A can protrude from each filling recess 2. In this state, bubbles contained in the mixed liquid 8 supplied to each filling recess 2 are caused to float on the curved portion 8A.

(2) Scraping process
As shown in FIG. 5 , the scraper 7 is moved along the seal plane 3 of the container 1 to scrape off the mixed liquid 8 accumulated on the seal plane 3, in other words, protruding upward from the seal plane 3. The mixed liquid 8 in the curved portion 8A is scraped off, and the liquid surface of the mixed liquid 8 is set as an opening surface of the filling recess 2, in other words, a horizontal plane including the seal plane 3. In this step, the mixed liquid 8 overflowed from the filling recess 2 is drained to the outer periphery of the container 1 and also drained from the overflow hole 4. In this step, bubbles floating on the curved portion 8 </ b> A above the mixed solution 8 are removed together with the mixed solution 8.

(3) Heat sealing process
As shown in FIG. 6 , a lid film 6 made of a plastic film is placed along the sealing plane 3 of the container 1, and the lid film 6 is heat-sealed to the sealing plane 3. The lid film 6 that seals the opening of the container 1 is welded to the sealing plane 3 of the container 1 and is in close contact with the upper surface of the filled tofu filled in the filling recess 2 and solidified with a coagulant.

  Through the above steps, the filling recess 2 is filled with the mixed liquid 8, and the lid film 6 is heat sealed to the sealing plane 3 of the container 1 in a state where the lid film 6 is in close contact with the liquid surface of the mixed liquid 8 in the filling depression 2. The The lid film 6 is in close contact with the liquid surface of the filling recess 2 to seal the filling recess 2. In this state, the coagulant contained in the mixed liquid 8 coagulates the soy milk to become filled tofu. However, since the coagulant coagulates the soymilk from the time it is mixed with the soymilk, it is not always necessary to coagulate the soymilk after sealing the filling recess 2 with the lid film 6, and in the previous step of heat-sealing the lid film 6 In addition, a part or the whole of the soy milk can be solidified.

It is sectional drawing which shows the filling process of the liquid mixture of the manufacturing method of the conventional filling tofu. It is a perspective view which shows another example of the container used for the manufacturing method of the conventional filling tofu. It is a perspective view which shows an example of the container used for the manufacturing method of the filling tofu concerning one Example of this invention. It is sectional drawing which shows the filling process of the liquid mixture of the manufacturing method of the filling tofu concerning one Example of this invention. It is sectional drawing which shows the scraping process of the manufacturing method of the filling tofu concerning one Example of this invention. It is sectional drawing which shows the heat seal process of the manufacturing method of the filling tofu concerning one Example of this invention.

DESCRIPTION OF SYMBOLS 1 ... Container 2 ... Filling recessed part 3 ... Sealing plane 4 ... Overflow hole 5 ... Perforation 6 ... Lid film 7 ... Scraper 8 ... Mixed liquid 8A ... Curved part

Claims (3)

A method for producing tofu comprising filling a mixture (8) of soymilk and a coagulant into a container (1), and heat-sealing the lid film (6) at the opening of the container (1) filled with the mixture (8). There,
The container (1) for filling the mixed liquid (8) has the filling recesses (2) arranged in rows and columns in a plurality of rows, and between the adjacent filling recesses (2) and between the filling recesses (2). On the outer peripheral surface, using a container (1) provided with a flat sealing plane (3) for heat-sealing the lid film (6),
The container (1) is arranged in a posture in which the seal plane (3) is a horizontal plane, and the liquid mixture (8) having an amount larger than the internal volume and overflowing is filled in each filling recess (2). Fill and fill the filling recess (2) with the mixture (8) in a state protruding from the horizontal plane including the seal plane (3), move the scraper (7) along the seal plane (3), and seal After scraping the mixed liquid (8) protruding upward from the plane (3), the filling recess (6) is heat sealed to the sealing plane (3) and filled with the mixed liquid (8). 2) a method for producing filled tofu that seals,
The container (1) is provided with four filling recesses (2) arranged vertically and horizontally in two rows and two columns, and a seal plane (3) provided in a cross shape between the four filling recesses (2 ). Use a container (1) with an overflow hole (4) at the intersection,
The liquid mixture (8) to be supplied in a larger amount than the internal volume to the filling recess (2) is projected and curved from the plane including the seal plane (3) which is the opening of the filling recess (2) by the action of surface tension. A curved portion projecting upward from the sealing plane (3), with the portion (8A) provided and the bubbles contained in the mixed liquid (8) supplied to the filling recess (2) floating on the curved portion (8A) After scraping off the liquid mixture (8) in the section (8A), draining it from the overflow hole (4), and removing the bubbles floating on the curved part (8A) together with the liquid mixture (8), seal A method for producing filled tofu, characterized in that the lid film (6) is heat-sealed on the flat surface (3) to seal the filling recess (2).   The method for producing filled tofu according to claim 1, wherein the filling recess (2) is filled with 30 to 100 g of the mixed liquid (8).   2. The container (1) according to claim 1, wherein a sealing plane (3) provided at the boundary of the filling recess (2) is provided with a perforation (5) for separating each filling recess (2). A method for producing filled tofu.

Images