Stir the milk regularly to keep even temperature throughout the milk. Never drink milk which has not been heated . It can make you sick . Only high temperatures change fat, but pasteurization melts fat so that rough treatment easily breaks the membrane . Then, enzymes can oxidize the fat .
Pasteurization coagulates sour milk .
Normal pasteurization does not cause browning. Minerals and vitamins Normal pasteurization does not change minerals. Heat treatment can destroy water soluble vitamins . Important Use thermatization only if you cannot pasteurize the milk within 24 hours of delivery to the plant. This kills most harmful bacteria .