Carrot quick-freezing process with variable quick-freezing speed
A technology of carrots and crafts, applied in the direction of freezing/refrigerating fruits/vegetables, etc., can solve the problems of difficult control, high energy consumption, etc., and achieve the effect of reducing possibility, low energy consumption, and most energy consumption
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[0013] Examples:
[0014] (1) Prepare the carrots that need quick freezing according to the routine selection, cleaning, cutting, bleaching, cooling, dehydration and other processes;
[0015] (2) The carrot pre-cooling stage, in this stage, the cold air temperature is -8~-10℃, the wind speed is 4~6m / s, and the carrot core temperature is pre-cooled to 0~-1℃;
[0016] (3) Carrot crystallization stage, at this stage, the cold air temperature is -25~-28℃, the wind speed is 8~10m / s, and the center temperature of carrot is cooled to -5~-8℃;
[0017] (4) In the cooling stage of carrots, at this stage, the cold air temperature is -35~-38℃, the wind speed is 4~6m / s, and the core temperature of carrots is cooled to -18℃;
[0018] (5) According to the conventional low-temperature storage method, store the cooled carrots in a cold storage at -18°C.
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