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Food refrigeration is a specialized technology that uses low-temperature technology to lower the temperature of food and maintain it in a low-temperature state to prevent food spoilage and prolong its shelf life. Low temperature preservation can be used for the storage of fresh food materials, as well as widely used in food processing and semi-finished product storage. With the gradual improvement of living standards, people are paying more and more attention to the reasonable intake of nutrients, and the requirements for food preservation are also gradually increasing.