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Frozen food unfreezing method

A frozen food and microwave technology, applied in food preservation, food science, application, etc., can solve the problems of food quality damage, uneven thawing, local overheating, etc., and achieve the goal of reducing energy consumption, high thawing efficiency, and fast and uniform thawing Effect

Inactive Publication Date: 2015-09-30
GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the difference in the absorption rate of microwave energy by different components of food, and the absorption of microwave energy by ice and water is also different, microwave thawed food is prone to problems such as uneven thawing, local overheating, etc., which seriously damages food quality and produces cooking smell. and other phenomena

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] a. Choose a microwave oven

[0026] a.1 Select a microwave oven with a frequency of 2450Hz and a power of 700w;

[0027] a.2 Choose a Galanz microwave oven with a volume of 18L;

[0028] b. Choose the appropriate microwave thawing container

[0029] b.1 Select a microwaveable container with good heat resistance and in line with hygienic standards;

[0030] b.2 Choose a microwaveable container with a volume of 2L;

[0031] c. After unpacking the quick-frozen lychee, put it into the above-mentioned microwaveable container;

[0032] d. Add clean water to quick-frozen lychee: water = 1:0.8 by weight to submerge the fruit;

[0033] e. Put the microwaveable container into the microwave oven, and select the power of 180w for continuous water bath microwave thawing;

[0034] f. Thaw for 3 minutes, stop the thawing after the center temperature of the fruit reaches -1°C, take it out and eat.

Embodiment 2

[0036] a. Choose a microwave oven

[0037] a.1 Choose a microwave oven with a frequency of 2450Hz and a power of 800w,

[0038] a.2 Choose a Galanz microwave oven with a volume of 30L;

[0039] b. Select the appropriate microwavable container

[0040] b.1 Select a microwaveable container with good heat resistance and in line with hygienic standards,

[0041] b.2 Choose a microwaveable container with a volume of 2L;

[0042] c. put the quick-frozen red bayberry into the above-mentioned microwaveable container after unpacking;

[0043] d. According to the proportion of quick-frozen red bayberry: water = 1:0.5, add clean water to submerge the fruit;

[0044] e. Put the microwaveable container into the microwave oven, select the power of 210w for continuous water bath microwave thawing;

[0045] f. Thaw for 1 minute, stop thawing after the center temperature of the fruit reaches 1°C, take it out and eat.

Embodiment 3

[0047] a. Choose microwave thawing equipment

[0048] a.1 Select a microwave oven with a frequency of 2450Hz and a power of 800w;

[0049] a.2 Choose a microwave oven with a volume of 20L;

[0050] b. Select the appropriate microwavable container

[0051] b.1 Select a microwaveable container with good heat resistance and in line with hygienic standards;

[0052] b.2 Choose a microwaveable container with a volume of 4L;

[0053] c. Packing the quick-frozen pork into a microwaveable container;

[0054] d. According to the weight ratio of quick-frozen pork: water = 1:1, add clean water to immerse the food;

[0055] e. Put the microwaveable container into the microwave oven, and select the power of 280w for intermittent water bath microwave thawing;

[0056] f. Thaw for 6 minutes, stop thawing after the central temperature of the food reaches -2°C, take it out for processing and eat.

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Abstract

The invention relates to a frozen food unfreezing method. The method comprises the steps that frozen food is placed into a microwave container, and water with the weight being 0.5-1 time that of the frozen food is added into the container; the microwave container is arranged in a microwave oven for microwave unfreezing. According to the frozen food unfreezing method, various kinds of daily frozen food can be rapidly and evenly unfrozen only by utilizing a common domestic microwave oven instead of a special large microwave unfreezing device, adding water according to a certain ratio for water-bath microwaving and reasonably controlling the capacity ratio of the frozen food container to the microwave oven and the microwave power and time in the microwaving process, the unfreezing efficiency is improved, the original appearance, texture, nutritional quality and flavor of the frozen food can be kept to the greatest degree, low energy consumption, high quality and high efficiency of the unfreezing technology are achieved, and the device is simple, convenient to operate, wide in application range, easy to popularize and high in life practicability.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a method for thawing frozen food. Background technique [0002] The quick-frozen food industry in the world is developing rapidly. In 2007, the total output value of quick-frozen food in the world reached 105 billion US dollars. Among them, the per capita annual consumption of quick-frozen food in developed countries in Europe and America has reached more than 60kg. In recent years, the annual growth rate of quick-frozen food in my country has reached more than 20%, which is the fastest growing industry in the food industry. At present, there are more than 2,000 frozen food enterprises in the country, with more than 300 varieties and a total output of about 1,500 tons. Thawing technology is the ultimate guarantee for the quality of quick-frozen food. Scientific thawing methods can maintain the original quality advantages of quick-frozen food, while inappropriate thawing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/37
CPCA23L3/37
Inventor 梁东武刘明津杨公明张昭其袁海秦文健
Owner GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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