Size reduction can be a critical operation in food processing. For example, cereal milling relies on size reduction by crushing or fracture to yield a variety of particles which can be sorted by screening to give fractions that are higher in fiber, protein, or starch. Milling works because cereal grains are relatively hard and break under stress. Proper control of moisture is important to control the physical properties and thus give the desired particles without excessive dust on the one hand a…