Food processing is the transformation of agricultural products into food, or of one form of food into other forms. Food processing takes many forms, from grinding grain into raw flour, home cooking, and complex industrial methods used in the making of convenience foods.

Food processing, any of a variety of operations by which raw foodstuffs are made suitable for consumption, cooking, or storage. Food processing generally includes the basic preparation of foods, the alteration of a food product into another form, and preservation and packaging techniques.