1. Pasteurization :- In pasteurization , milk is heated at 72 degree Celsius for 15 seconds or at 63 degree Celsius for 30 minutes. It also increase shelf life storage of milk . High temperature less time.
2. Ultra heat treatment :- milk is Homogenized and heated to temperature of 135 degree Celsius for one minutes unopened. It can be used for longer time.
3. homogenized :- Milk is passed through fine aperture . The fat content gets evenly distributed when milk is passed through fine aperture.
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