JPH0751050B2 - Frozen food suitable for microwave heating - Google Patents

Description

The present invention relates to a frozen food that is rapidly spreading and is suitable for microwave heating using a microwave oven, and more specifically, microwaves that do not cause uneven heating. The present invention relates to a frozen food suitable for heating.

[Problems to be Solved by Prior Art and Invention]

Conventionally, heating a frozen food that has been cooked using a microwave oven, or heating and cooking is generally performed,
These are likely to cause heating unevenness between the center part and peripheral parts such as the side surface, the top surface and the bottom part during heating, and especially when cooking frozen food while thawing, overheating state such as burning of the center part It was easy to become.

Therefore, as a countermeasure against heating unevenness as described above, methods such as reducing the unevenness of the shape of the food, making the thickness of the food uniform, placing the food in the center of the microwave oven, rotating the food with a turntable, etc. The method of covering the easily heated portion with a microwave shield is adopted. However, it is difficult to say that such a method is satisfactory for uneven heating, and it is far from the purpose of simple cooking that a microwave oven has.

In addition, as another countermeasure against uneven heating, when cooking frozen foods, slowly thaw it with low output for a long time,
There is a method to heat and cook with high output after thawing,
Such a method requires complicated operations and is not sufficient as a measure against uneven heating.

Therefore, an object of the present invention is to provide a frozen food suitable for microwave heating, which can achieve heating by microwave heating without causing uneven heating.

[Means for solving problems]

As a result of intensive studies to solve the above problems, the present inventors have found that the above object can be achieved by arranging a substance having a small dielectric constant in the center of a heated object where microwave energy is concentrated. The present invention has been reached.

That is, the frozen food suitable for microwave heating of the present invention is one in which a frozen product having a water content of 70% by weight or more is placed in the center of the food and frozen.

Hereinafter, the frozen food suitable for microwave heating of the present invention will be described in detail.

The frozen substance arranged in the central portion of the frozen food of the present invention is a frozen substance having a water content of 70% by weight or more, preferably 90% by weight or more. In addition, the amount of frozen products is 1 to 30% by weight based on the whole food.
Is preferable, and more preferably 3 to 15% by weight.

The frozen substance arranged in the central portion of the frozen food of the present invention is, within the scope of the object of the present invention, if desired, in addition to water (ice), protein, starch, saccharides, fats and oils, various taste substances, flavors and spices. ,
Seasonings, acidulants, emulsifiers, stabilizers, inorganic salts, thickeners,
Gelling agents, etc. may be added, and fruits, vegetables, meat,
You may mix | blend auxiliary food materials, such as fish meat.

As a method for arranging a frozen substance in the central portion of the frozen food of the present invention, as long as it is a method in which the frozen substance of the above composition is arranged in the central portion of the frozen food, there is no particular limitation, but, for example, Ice or a frozen substance containing other components in addition to water is placed directly in the center of the food to mold the food, or a method of freezing, or a frozen or frozen liquid of the above formulation, in liquid or gel form The method of injecting it into the central part of the food with an injector or the like and then freezing it can be mentioned.

The type of food to which the present invention can be applied is not particularly limited as long as it is a food that can be frozen.

The present invention will be further described below with reference to examples, but the present invention is not limited thereto.

〔Example〕

Example 1 200 g of cooked rice cooked using a gas rice cooker was allowed to stand at room temperature, 10 g of ice was placed in the center to form a rice ball, and soy sauce was applied to the surface. This rice ball was frozen at −20 ° C. for 24 hours to prepare a frozen rice ball. When this frozen rice ball was heated in a microwave oven (500 W), it took 4 minutes and 30 seconds. The rice ball had no uneven heating and had a good texture and taste.

Comparative Example 1 A frozen rice ball was prepared in the same manner as in Example 1 except that ice was not placed. When this frozen rice ball was heated in a microwave oven (500 W), it took 4 minutes and 30 seconds. This rice ball had a non-passage difference between the central part and the peripheral part, and particularly the central part was partially charred, and had an extremely bad texture.

Example 2 A frozen butter roll was prepared by filling 5 cc of a solution containing 99% by weight of water and 1% by weight of gelatin in the center of a 40 g butter roll using an injector and freezing at -20 ° C for 24 hours. When this frozen butter roll was wrapped in wrap and heated in a microwave oven (500 W), it took 2 minutes and 30 seconds. The butter roll had a good dough state like the butter roll immediately after baking, had no heating unevenness, and had a good texture and taste.

Comparative Example 2 40 g of butter roll was frozen in the same manner as in Example 2 to prepare a frozen butter roll. Wrap this frozen butter roll in plastic wrap and heat it in a microwave oven (500W) for 2 minutes
It took 30 seconds. This butter roll was unsuitable for eating because the dough around the center was burnt and partly scorched, but near the surface, the dough was gritty and unevenly heated.

〔The invention's effect〕

An effect of the present invention is to provide a frozen food suitable for microwave heating, which can achieve heating by microwave heating without causing uneven heating.

Claims (1)

[Claims] 1. A frozen food suitable for microwave heating, characterized in that a frozen product having a water content of 70% by weight or more is placed in the center of the food and frozen.