ABSTRACT

For an extensive discussion of various aspects of food

dehydration systems, the reader can look into several valu-

able reference books.[1-4]

The successful design of a food dehydration system

must take into consideration feed and product characteris-

tics in order to define desirable properties of the drying

environment (dryer type, operating conditions). On the

feed side, it is very important to know its water binding

characteristics, which are adequately described by its

moisture isotherm. We also need to know its structural

characteristics and all possible mechanisms of heat and

mass (water) transfer both inside and outside the product.

Water Binding Properties