You can cool the milk with running water in a vat . You can also cool the milk by running water through a jacket . You can keep pasteurized milk for up to a week if you keep it cool and not reinfected . If your milk is not cool, keep it for only 1 day . A centrifuge separates the cream from the skim milk.
Some separators also remove dirt .
The plant automatically standardizes the milk by adding part of the cream to the skim milk flow. Next, the plant homogenizes the milk. Important Heat treat immediately after homogenization . There are two types of holder system. Some plants put the milk in bottles, sachets or cartons first and then heat treat the milk.