A Suspension: Skim Milk

In the basic steps in milk processing, second step is separation. The purpose of the separation step is separate raw milk into cream and skim milk. Raw milk is transferred to separator, which is a high-speed centrifuge machine. Lighter part of raw milk is separated from heavier skim milk fraction and stored as cream. Skim milk and cream are stored separately for further processing. At the next step, standardization, these two fractions of raw milk may be mixed by blending to produce products that require milk fat content [1].