UNIT OPERATIONS

A unit operation is a single operation defined by physical principles. Six unit operations are utilized frequently in the processing of food.

1. Fluid Flow: Movement of liquid from one place to another

2. Heat Transfer: Movement of energy in the form of heat into or out of a product

3. Mass Transfer: Transfer of mass into or out of a food system

4. Mixing: Production of a homogenous mass

5. Size Adjustment: Change in the size of particles

6. Separation: Separation components on the basis of some physical property