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What is the main advantage of annealing?

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+1 vote
in Food Processing Unit Operations by (110k points)
What is the main advantage of annealing?

(a) It is done to achieve largeice crystals

(b) It is done to achieve smallice crystals

(c) It is done to achieve microscopicice crystals

(d) It is done to achieve mixture of large and small ice crystals all

I got this question during an online exam.

The above asked question is from Freeze Drying topic in division Drying of Food Processing Unit Operations

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Right option is (a) It is done to achieve largeice crystals

The explanation: The large ice crystals promote faster removal of water vapor due to formation of a network within the product during sublimation. Therefore annealing is done to achieve larger crystals where the product is slowly frozen.

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