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_______ is used to freeze food at a tremendously fast rate.

a) Fluidized bed freezer
b) Plate freezer
c) Cryogenic freezers
d) Belt freezer

Answer: c
Explanation: Cryogenic freezing is used to freeze food at a tremendously fast rate. The food is moved through a spray of liquid nitrogen. It can also be directly immersed in liquid nitrogen. The liquid nitrogen boils at a temperature of −196 °C around the food and thus extracts a huge amount of heat at faster pace.

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