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.
This plate heat exchanger can heat treat milk and then cool it. The plant then heats the sealed bottles to 110 C for about 30 minutes. The plant heats the milk to 75 C to stabilize it and then to 130-140 C for 20 seconds to sterilize it. The plant then cools the milk to 80 C and bottles it. Continual sterilization 53 Equipment used for continual sterilization.