Question

Which of the following is known to result in the highest quality of foods amongst all drying techniques?

(a) Freeze drying

(b) Cold pasteurization

(c) Osmotic dehyradtion

(d) Evaporation

I had been asked this question by my school principal while I was bunking the class.

My doubt is from Freeze Drying topic in division Drying of Food Processing Unit Operations

Answer 1

The correct option is (a) Freeze drying

To elaborate: Freeze drying produces highest quality of foods amongst all other drying techniques. This is mainly due to structural integrity and preservation of flavors of the product during the freezing process.