| 摘要 |
PURPOSE:To obtain a high-quality frozen food free from defects such as cracks, by freezing a food by a process and condition controlled according to a preset program. CONSTITUTION:Programs to control freezing process and freezing condition of a food such as daily dishes, etc., including precooling process, etc., are prepared beforehand. Pressure and temperature, etc., in the food are detected with respective sensors and the food is frozen while controlling the temperature and flow rate of cooling medium, transfer speed of the food, freezing time, etc., according to the detected values.
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