Question

What are factors depending on rate of drying?

(a) Initial moisture content of the product

(b) Composition of raw material

(c) Temperature, relative humidity

(d) Initial moisture content, composition, temperature, relative humidity of the product.

I have been asked this question in homework.

My question is from Basic Drying Theory in section Drying of Food Processing Unit Operations

Answer 1

Right choice is (d) Initial moisture content, composition, temperature, relative humidity of the product.

The explanation is: Drying rate is defined as the mass of water removed per unit time per unit area. It depends on initial moisture content, composition, temperature, relative humidity of the product, Size, shape and arrangement of stacking of the raw material.