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Flash freezing being used for cryopreservation. Flash freezing is used in the food industry to quickly freeze perishable food items (see frozen food). In this case, food items are subjected to temperatures well below [clarification needed] the freezing point of water. Thus, smaller ice crystals are formed, causing less damage to cell membranes. [3]
By reducing the temperature of cooked food from +70 to +3 °C (158 to 37 °F) or below within 90 minutes, the food is rendered safe for storage and later consumption. This method of preserving food is commonly used in food catering and, recently, in the preparation of "instant" foods, as it ensures the safety and the quality of the food product.
Tunnel freezing is a variant of air-blast freezing where food is put onto trolley racks and sent into a tunnel where cold air is continuously circulated. Fluidized bed freezing is a variant of air-blast freezing where pelletized food is blown by fast-moving cold air from below, forming a fluidized bed. The small size of the food combined with ...
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The anti-griddle maintains a constant temperature of -30°F (c. -34.4°C) by pumping a refrigerant through a compressor to remove heat from its steel surface. [6] Liquids, oil, and gels generally freeze in 30 to 90 seconds. The finished product has a crunchy outer texture while the inside remains soft or creamy.
Dippin' Dots are stored and transported at –40 degree Fahrenheit (–40 °C), which is colder than most frozen foods require. The company's development of ultra low temperature freezers, proper storage and transportation got the company involved from about 1988 with selling their equipment for other uses, such as preserving microbiological cultures for fermentation.
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