JPH08214805A - Packed frozen sushi - Google Patents

Abstract

PURPOSE: To obtain packed frozen SUSHI (ingredients on vinegared rice) suitable for thawing by a microwave oven. CONSTITUTION: This packed frozen SUSHI 1 comprises frozen formed boiled rice 2, a frozen ingredient 3 placed on the top of the frozen formed boiled rice 2, a first plastic film covering the whole surface of the frozen formed boiled rice 2 placing thereon the frozen ingredient 3, an aluminum foil which is laid on the top of the first plastic film, arranged on the ingredient and covers the ingredient, and a second plastic film covering the whole surface of the SUSHI containing the part of the ingredient wrapped in the aluminum foil.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to packaged frozen sushi, and more particularly to packaged frozen sushi suitable for thawing in a microwave oven. A packaged frozen sushi product suitable for thawing in a microwave oven, which is packed with a plastic film that is not preferable to be heated

[0002]

2. Description of the Related Art For example, in the case of bar sushi, vinegar-matched cooked rice is molded, and on this molded cooked rice molded product, for example, water-removed and adjusted sea bream, red salmon, mackerel, etc.
A frozen sushi product is manufactured by placing the sushi product on a stick with white plate kelp boiled with soup seasoned with sugar and salt to form a stick, degassingly packing the formed sushi with a plastic film, and freezing it with brine.

Frozen sushi with such brine is deaerated and packaged before freezing, so that bacteria adhered in the freezing chamber,
And there is no absorption of odor. Therefore, it is superior in hygiene to air blast freezing of slow freezing in which deaeration packaging is performed after freezing and freezing of nitrogen or carbon dioxide. Frozen sushi with brine can be stably stored, for example, at a storage temperature of -18 ° C for a long period of 3 months or more,
At a storage temperature of 50 ° C., storage for 6 months or more is possible.

However, such frozen frozen sushi is thawed before use. Thawing includes natural thawing, running water thawing, steam thawing, hot water thawing, and microwave thawing.Microwave thawing is extremely suitable for thawing frozen sushi, etc. because the thawing time is extremely short and the thawing yield is high. There is. For example, in the case of the above stick sushi, it takes 5 hours to thaw at room temperature, but it can be thawed in 4 minutes with microwave defrosting, so microwave defrosting is more immediate than demand at room temperature. It is convenient because it can respond to.

[0005]

However, in the case of thawing with a microwave oven, the amount of heat generated by the absorption of high frequency is different between the portion of the ingredient and the portion of the cooked rice, and this is a problem because the ingredient is overheated. , Not used. Moreover, in the case of stick sushi, it is preferred that the cooked rice part has human skin,
Since it is preferred that the part of the ingredient has a temperature of 10 ° C or lower,
It is relatively difficult to apply microwave defrosting to defrost packed frozen sushi. An object of the present invention is to solve the problem that microwave thawing is not suitable for conventional thawing of packed frozen sushi.

An object of the present invention is to provide a packaged frozen sushi product suitable for thawing in a microwave oven. That is, the present invention relates to a frozen cooked rice molded product, an ingredient that is placed on the upper surface of the cooked rice frozen article and is frozen, and a whole surface of the cooked rice article on which the frozen ingredient is placed. A plastic film, and an aluminum foil covering the tool located above the tool on the first plastic film,
A packaged frozen sushi product, comprising: a second plastic film that covers the entire surface of the sushi product whose part is covered with the aluminum foil.

In the present invention, the packaged frozen sushi is a packaged frozen sushi produced by brine freezing, air blast freezing, nitrogen or carbon gas freezing, and particularly preferably a packaged frozen sushi produced by brine freezing. . In addition, in the present invention, sushi that is packaged frozen sushi,
There are sushi whose ingredients are placed on the cooked rice molded product, for example, stick sushi and nigiri sushi, and one sushi may be packed and frozen, or a plurality of sushi may be packed and frozen together. In the packed frozen sushi product of the present invention, when the sushi is packaged with the packaging material, since the aluminum foil is provided at the location of the packaging material corresponding to the sushi ingredient portion, the ingredient portion is heated by high frequency. Can be avoided.

In the present invention, the packaging material is formed in the shape of a bag, and an aluminum foil is provided at a portion in contact with the tool. The aluminum foil is covered on both sides with a plastic film so as not to come into direct contact with food materials and high frequencies. Therefore, a portion which comes into contact with the cooked rice molded body is doubly covered with two plastic films, which has a structure capable of avoiding invasion of outside air, moisture and bacteria as much as possible.

In the present invention, the thawing of the ingredient is performed by the heat generated when the frozen cooked rice molded product is thawed by the microwave oven. Therefore, in the present invention, the thawing of packed frozen sushi is related to the storage temperature of the packed frozen sushi,
For example, it is thawed in a microwave oven for 3 to 5 minutes to thaw the frozen cooked rice molded product, then steamed for 15 to 30 minutes, and thawed to the ingredient at the heating temperature of the cooked rice molded product.

In the present invention, the first plastic film is arranged inside, and for example, a polyethylene film can be used. Also, the second plastic film is arranged on the outside,
For example, a nylon film can be used. The coating of the ingredients with the aluminum foil can be performed by placing the aluminum foil between the plastic films, and
It can be performed by an aluminum foil formed by vapor deposition or plating on one plastic film.

[0011]

According to the present invention, a packaged frozen sushi product is prepared by including a frozen cooked rice molded product, an ingredient placed on the upper surface of the cooked rice frozen article and frozen, and a cooked rice molded article having the frozen ingredient. A first plastic film that covers the entire surface, an aluminum foil that covers the ingredient placed above the ingredient on the first plastic film, and the entire surface of the sushi where the portion of the ingredient is covered with the aluminum foil. Since it is composed of the second plastic film for covering, the packed frozen sushi can be thawed without heating the ingredients.

[0012]

EXAMPLES The embodiments of the present invention will be described below with reference to examples, but the present invention is not limited to the following description and examples. FIG. 1 is a schematic front sectional view illustrating the outline of an embodiment of the present invention, and FIG. 2 is a schematic front sectional view illustrating the outline of another embodiment of the present invention. FIG.
2, the same reference numerals are used for corresponding parts.

In FIG. 1, a packaged frozen sushi 1 has an ingredient 3 placed on a cooked rice molded body 2, a white plate kelp 4 placed on the ingredient 3, and these are wrapped with a wrapping film 5. . On the wrapping film 5 on the tool 3 of the wrapping film package 6, an aluminum foil 7 is arranged so as to cover the tooling 3. The wrapping film package on which the aluminum foil 7 is placed is placed in a bag 10 formed by stacking two laminated films of a polyethylene film 8 and a nylon film 9 and joining the ends on three sides, and is deaerated and packaged. There is. This package is frozen with brine to produce the packaged frozen sushi 1.

In FIG. 2, similar to the example of FIG. 1, the packed frozen sushi 1 has the ingredients 3 placed on the cooked rice molding 2.
The white plate kelp 4 is placed on the ingredient 3, and these are wrapped with the wrapping film 5 to form the wrapping film package 6. In this example, the bag 10 is formed of a laminated film of a polyethylene film 8 and a nylon film 9 on one side 11, and the other side 12 is a nylon film 9 and a polyethylene film to which an aluminum foil is attached in a partial area. 8 laminated films, and these laminated films are overlapped and their three ends are joined to each other. In this example, the wrapping film package 6 is placed in the bag 10 with the tool 3 facing the side to which the aluminum foil is attached, and is deaerated and packaged. This package is frozen with brine to produce the packaged frozen sushi 1.

Example 1 13 kg of cooked cooked rice was mixed with 1400 ml of vinegar, and the mixture was stirred so as to be uniform. The cooked rice thus vinegared is then cooled to 50 ° C. In this example,
The rice sample cooled to 50 ° C is placed on the belt of a thick-rolled sushi machine, cut into 300 g, and placed on the thick-rolling belt to form a round bar-shaped thick-cooked rice with a diameter of 46 mm and a length of 180 mm. Form the body. This round bar-shaped cooked rice product has a rough inner dimension of 55 mm in width, 50 mm in height and 18 in length.
It is put in a 0 mm box and pressed from above to form. The dimensions of the obtained cooked rice product are 55 mm in width and 30 m in height.
m and the length was 180 mm.

[0016] For example, on a wrapping film such as Saran Wrap (trade name), put white plate kelp boiled with vinegar, sugar and salt and cooled, and then put the bream that has been deboned and squeezed with salt as a ingredient. Then, the above-mentioned cooked rice product is placed on it and wrapped with the film for wrapping to form sushi. For sushi wrapped in a film for wrapping, put aluminum foil on the entire ingredient, put it in a bag of laminated film with polyethylene film inside and nylon film outside, degas and heat the mouth of the bag. Seal.

The sushi that was packaged and heat-sealed in this manner was frozen in brine by using ethyl alcohol as a brine and keeping it in a brine at a temperature of -35 ° C. for 45 minutes. At this time, the temperature of the core of the packed frozen sushi product was -25 ° C. The packed frozen sushi product thus produced was stored as a product at a temperature of -28 ° C.

When using this packed frozen sushi,
Thaw in a 960 watt microwave. The packed frozen sushi was put in the microwave oven and thawed by heating for 4 minutes. After 4 minutes, it was taken out from the microwave oven, left at room temperature for 25 minutes, and steamed. The cooked rice had human skin and the ingredients were thawed.

Example 2 In this example, as a bag of plastic film used to form packed frozen sushi, aluminum was vapor deposited on a portion of the inside of the outer nylon film to form an aluminum foil, which was then deposited. A double plastic film bag with a polyethylene film laminated inside was used.

The wrapped sushi was made as in Example 1. Sushi wrapped in wrap is a bag of laminated films of nylon film with polyethylene film on the inside and aluminum on part of the outside evaporated on the inside so that the evaporated aluminum foil is located all over the ingredients. Then, the bag is degassed and the mouth of the bag is heat-sealed.

The sushi that was packaged and heat-sealed in this manner was frozen in brine by using ethyl alcohol as a brine and keeping it in a brine at a temperature of -35 ° C. for 45 minutes. At this time, the temperature of the core of the packed frozen sushi product was -25 ° C. The packed frozen sushi product thus produced was stored as a product at a temperature of -28 ° C.

When using this packed frozen sushi,
Thaw in a 960 watt microwave. The packed frozen sushi was put in the microwave oven and thawed by heating for 4 minutes. After 4 minutes, it was taken out from the microwave oven, left at room temperature for 25 minutes, and steamed. The cooked rice had human skin and the ingredients were thawed.

In this example, a bag in which a part of the inner surface of the nylon film is vapor-deposited with aluminum was used, but an aluminum foil can be formed by plating instead of vapor deposition. It is also possible to use a bag in which the entire inner surface of the nylon film is vapor-deposited or plated with aluminum. In this case, the bag is formed in such a size that the aluminum foil covers the sushi ingredients.

[0024]

INDUSTRIAL APPLICABILITY According to the present invention, a packaged frozen sushi product is frozen, a cooked rice molded product, an ingredient placed on the upper surface of the cooked rice frozen article, and a cooked rice article on which the frozen ingredient is placed. A first plastic film that covers the entire surface of the body, an aluminum foil that covers the ingredient placed above the ingredient on the first plastic film, and a sushi item that is covered with the aluminum foil. Since it is composed of a second plastic film that covers the entire surface of the packed sushi product, it is possible to use a microwave oven, which has been considered difficult in the past. Can be thawed.

[Brief description of drawings]

FIG. 1 is a schematic front sectional view showing an embodiment of the present invention.

FIG. 2 is a schematic front sectional view showing an embodiment of the present invention.

[Brief description of reference numerals]

 1 Packed frozen sushi 2 Cooked rice molded product 3 Tool 4 White plate kelp 5 Film for wrap 6 Film package for wrap 7 Aluminum foil 8 Polyethylene film 9 Nylon film 10 Bag 11 One side of the bag 10 The other side of the bag 10

Claims (2)

[Claims] 1. A frozen cooked rice molded product, an ingredient that is placed on the upper surface of the cooked rice frozen article and is frozen, and a first covering the entire surface of the frozen cooked rice article on which the frozen ingredient is placed. A plastic film, an aluminum foil that covers the ingredient placed above the ingredient on the first plastic film, and a second plastic film that covers the entire surface of the sushi whose ingredient is covered with the aluminum foil. Packaged frozen sushi characterized by having. 2. The packaged frozen sushi product according to claim 1, wherein the number of the frozen molded rice products covered with the first plastic film and on which the ingredients are placed is 2 or more.