Food freezing and thawing method and apparatus

一种食物、冷冻器的技术,应用在冷冻和解冻食品的系统领域,能够解决系统复杂、时间长、昂贵容量等问题,达到高热交换速率、避免脱水现象的效果

Inactive Publication Date: 2007-02-21
大喜多英义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method uses traditional freezing techniques, and the process time required to complete the freezing is still very long (2 to 3 hours)
While this method retains water within cells and prevents dripping, such systems are complex, expensive, and have limited capacity

Method used

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  • Food freezing and thawing method and apparatus
  • Food freezing and thawing method and apparatus
  • Food freezing and thawing method and apparatus

Examples

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Embodiment Construction

[0027] Although the invention can be used for freezing and defrosting foods, especially foods with a high moisture content, the invention will be described in connection with an example for freezing and defrosting sushi.

[0028] According to the present invention, sushi refers to any known sushi food, eg food in the form of cooked rice with toppings such as fish, avocado, etc. Sushi can also be rolled. Typically, 60% of the weight of sushi is water. There are several important factors to consider when freezing foods with high moisture content that will be eaten thawed later. One factor is the aging process, in which foods such as rice irreversibly lose their moisture. In the case of sushi, this is a process in which the chains of starch molecules lose their regular array and become mushy. The aging process of sushi accelerates when the food temperature drops below 10°C, and is most severe in the range of about 6°C to about 0°C. This temperature range is called "accelerate...

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PUM

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Abstract

A method of freezing food for later thawing and use which includes the steps of packing a food product in a container for freezing, cooling the food substantially throughout the bulk thereof to about 10 DEG C. and then cooling the food substantially throughout the bulk thereof preferably from about 10 DEG C. to about -10 DEG C. in approximately 10 minutes to less than approximately 40 minutes.

Description

technical field [0001] The present invention generally relates to systems and methods for freezing and thawing food products. More specifically, the present invention relates to systems and methods for freezing food products that minimize damage to the food product, such as staling, that may occur during freezing. The present invention also relates to systems and methods for thawing frozen food products to maximize their flavor. Background technique [0002] In traditional freezing methods, food is cooled from room temperature to freezing temperature within several hours, usually 1 to 3 hours. When freezing foods with high moisture content such as sushi (the well-known combination of cooked rice, raw fish and other toppings) using this traditional method, the food irreversibly loses a large part of its moisture. During conventional freezing, when food is exposed to a certain temperature range for a relatively long period of time, an accelerated aging process occurs, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/06A23L1/325A23L3/36A23L3/365A23L7/10A23L17/00F25D3/12
CPCA23L3/365F25D2400/30A23L3/364F25D3/122A23L3/36A23B4/06
Inventor 大喜多英义
Owner 大喜多英义
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