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Snap freezing : ウィキペディア英語版
Snap freezing

Snap freezing (or cook-chill or blast freezing) is the process of cooking meals until they are almost done and then rapidly chilling them.
The process involves the cooking of meals at a central factory, rapidly chilling them for storage until they are needed. Cook chill foods need to be packed in shallow trays to make the process more efficient. The food is cooled to a temperature under 3 degrees Celsius within 90 minutes of cooking and stored at a maintained temperature of 0 to 3 degrees Celsius. The meals can then be transported in refrigerated transport to where the food is to be reheated and consumed when needed.

The length of storage depends on the method used but is usually five days. For longer storage the food may be subjected to pasteurization after cooking.
The main target group for these products are those with little time for cooking. Typical categories are schools, corrections, and hospitals.
These processes have the advantage that preparation and cooking of meals is not tied to the times when the food is to be served, enabling staff and equipment to be used more efficiently. A properly managed operation is capable of supplying high quality meals economically despite high initial equipment costs. There are potential problems; careful attention has to be paid to hygiene, as there are a number of points in the process where food pathogens can gain access. This requires careful attention to both the control of the process and to staff training.
Snap-freeze is a term often used in scientific papers to describe a process by which a sample is very quickly lowered to temperatures below -70 °C. This is often accomplished by submerging a sample in liquid nitrogen.
==See also==

* Flash freezing
* Blast chilling

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Snap freezing」の詳細全文を読む



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