JPS6210138B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to the processing of fish, and particularly to a method of processing fish into a raw-dried state.

<Conventional technology> When making dried fish, it is common to dry it under the sun. It is also manufactured by artificially using cold or hot air.

In addition, as shown in JP-A-56-75054, fish are packaged with a semi-permeable membrane such as collodion and the outside is covered with a water-absorbing agent;
As shown in Publication No. 86241, there is also a method in which fish is wrapped in cellophane and the surrounding area is dehydrated using silica gel.

<Problems to be Solved by the Invention> However, when drying in the sun, the finished product is affected by the weather, and if it gets rained on halfway, it will be ruined, and it will be unhygienic as flies etc. It is also a target. In addition, when drying with cold or hot air, only the surface exposed to the wind dries, but the moisture inside remains as is, resulting in a problem that the flavor is lower than when drying in the sun.

In other words, in order to make good sun-dried fish, it is necessary to ensure that the water is removed evenly from the whole fish, regardless of the weather.

Furthermore, if the entire fish is wrapped in cellophane or the like and the surrounding area is covered with a water-absorbing agent as shown in the above publication, the upper surface of the fish will be dehydrated well, but the dehydrated water will remain on the lower surface of the fish. Because of the large amount of water that is dehydrated from the fish, it does not completely drain through the cellophane, and instead accumulates between the fish and the cellophane, resulting in the water not being able to drain evenly from the entire fish. Furthermore, if the drying operation is continued while the lower surface of the fish remains wet, the lower surface of the fish will rot, making it impossible to produce fresh dried fish.

In other words, in order to ensure that water is released evenly from the whole fish, the water permeability of cellophane is just right for the top side of the fish, but it is necessary to use a material with higher water permeability than cellophane for the bottom side of the fish. .

<Means for Solving the Problems> Therefore, in the method for producing dried fish according to the present invention, inorganic fine particles are spread to a desired thickness, a cloth is spread on top of the inorganic fine particles, and a cloth is placed on top of the inorganic fine particles, which has a higher water permeability than non-moisture-proof cellophane. Spread a water-permeable material and place the fish on it. Spread non-moisture-proof treated cellophane on top of the fish. Lay a cloth on top of it and cover it with inorganic particles of the desired thickness. Leave it in this state for several hours to remove the inorganic particles. The water from the fish is absorbed uniformly by the inorganic fine particles, and the fish dries.The lower surface in contact with the fish is made of water-permeable material, and the upper surface is made of cellophane.The water permeability is different between the upper and lower surfaces of the fish, especially the lower surface of the fish. This prevents the surface from becoming wet with water from the fish.

<Example> Next, an example of the method for producing dried fish according to the present invention will be described based on the drawings. Inorganic fine particles 1 are spread to a desired thickness, and a cotton cloth 2 is spread on top of the inorganic particles 1. And on top of that, a water-permeable material 3 made of nylon non-woven fabric.
Lay it down. Fish 4 are then arranged on this water-permeable material 3 at appropriate intervals. Spread cellophane 5 that is not moisture-proofed on top of fish 4, and spread cotton cloth 2 on top of it. Then, the inorganic fine particles 1 of a desired thickness are placed on the cloth 2.

The inorganic fine particles 1 used may be volcanic ash such as whitebait, or ordinary river sand or sea sand. In any case, any material that is water-absorbing may be used. The reason why inorganic fine particles 1 are used as a water absorbing agent is that even if inorganic fine particles 1 absorb water, they can be dried again by applying heat, etc., so they can be used repeatedly, and they can also be sterilized at the same time by heating. It is. Materials that undergo chemical changes due to water absorption are uneconomical because they cannot be reused. The water-permeable material 3 is not limited to a nylon nonwoven fabric (for example, Spunbond and I-L are both manufactured by Asahi Kasei Corporation) as long as it has a higher water permeability than cellophane 5 and is non-water absorbent. The reason why non-moisture-proof treated cellophane 5 is used is that cellophane 5 that has not been subjected to moisture-proof treatment has water permeability. The reason why the water-permeable material 3 and cellophane 5 are used is to prevent the surface of the fish from becoming wet due to the moisture absorbed by the inorganic particles 1 when the moisture released from the fish 4 is absorbed by the inorganic particles 1. be. Since the lower surface of the fish 4 releases a large amount of water, a water-permeable material 3 having a higher water permeability than cellophane 5 is used for the lower surface of the fish 4.
If the water permeability of the water-permeable material 3 is too low, the amount of water coming out of the fish 4 will be greater than the water passing through the water-permeable material 3.
Water accumulates between the water-permeable material 3 and the water-permeable material 3. The cloth 2 is used to prevent direct contact between the inorganic fine particles 1 and the water-permeable material 3 or between the inorganic fine particles 1 and the cellophane 5, so it is not limited to cotton cloth as long as it has water permeability.

Then leave it like this for a few hours.
The drying time will vary depending on the size and type of fish and the degree of drying, but if you leave the fish to dry for about 2 to 6 hours, the moisture content will be just right. Since the inorganic fine particles 1 have water-absorbing power, there is no need to do anything special to make the inorganic fine particles 1 absorb water from the fish 4. However, if the outside temperature is 20 degrees or higher, the fish 4 may be left in the refrigerator to prevent its freshness from decreasing due to the temperature. In this way, raw dried fish similar to that traditionally produced by sun-drying is produced.

<Effects of the Invention> As described above, according to the method for producing dried fish according to the present invention, since the water in the fish is absorbed by the inorganic particles, a constant quantity of dried fish can be produced regardless of the weather. What's more, the bottom side of the fish is wrapped in a water-permeable material and the top side is wrapped in cellophane, so the surface of the fish doesn't get wet due to the moisture coming out of the fish.
Compared to the conventional method of wrapping the whole fish in cellophane or the like, this method has the effect of producing extremely high-quality dried fish.

[Brief explanation of the drawing]

The drawings are explanatory diagrams showing one embodiment of the method for producing raw dried fish according to the present invention. 1... Inorganic fine particles, 2... Cloth, 3... Water-permeable material, 4... Fish, 5... Cellophane.

Claims (1)

[Claims] 1. Spread inorganic fine particles to a desired thickness, spread a cloth on top of it, spread a water-permeable material with higher water permeability than non-moisture-proof treated cellophane, place a fish on top of it, and place a cloth on top of the cloth. Fish drying characterized by spreading moisture-proof cellophane, placing a cloth on top of it, covering it with inorganic fine particles of a desired thickness, and leaving it in this state for several hours to allow the inorganic fine particles to absorb water from the fish. Fish production method. 2. The method for producing dried fish according to claim 1, wherein the water-permeable material is a nylon nonwoven fabric. 3. The method for producing raw dried fish according to claim 1, wherein the inorganic fine particles are volcanic ash. 4 Claim 1 in which the inorganic fine particles are sand
Method for producing raw dried fish as described in Section 1.