How is milk produced?

Milk is produced biologically in a cow’s udder after she gives birth. A typical dairy cow produces about 30 litres per day, while the yield decreases as time passes after the calf is born.

After milking, the milk is cooled to 4 °C in a refrigerated tank on the farm. A milk truck transports it to the dairy, where it is checked for smell, taste, fat, protein and bacterial content. It may then be separated, standardized, homogenized, pasteurized and fortified with vitamins before being packaged.