Dairy Unit Operations

Using Pearson's Square method, cream with 40% fat is blended with skim milk with 0.1% fat to standardize 1000 kg of whole milk having 4.5% fat. The mass of 40% cream required in kg is: (Parts cream $= 4.5 - 0.1 = 4.4$; Parts skim $= 40 - 4.5 = 35.5$; Total parts $= 39.9$; Cream fraction $= 4.4 / 39.9$)