Drying operations pose a number of questions:
How long should drying continue?
How much heat should be supplied?
Which type of dryer should be used?
Drying operations pose a number of question:
What are the operating conditions (e.g. temperature, pressure , air humidity, air velocity)?
What are the capital and processing costs?
What are the environmental effects of the processing (i.e.pollution)?
In developing a product, consideration to the properties of the ingredients and
The characteristics of the final product that need to be developed or generated
Thus, the processing or operation conditions may need to be varied