Definition: It is the process by which milk is heated up to such a temperature and fro such a period of time to destroy the micro organisms within the milk without altering the composition flavor and nutrient value of milk.
- Holding method: 63C-66C for 30 minutes. Then quickly cooled to
- Flash method: 72C for 15 minutes. Then quickly cooled to
- Ultra high temperature method: 133C for two Sec.
The bacteria’s that are removed by the pasteurization:
- M bovine.
Pasteurization is not a true sterilization process because this process can’t kill or remove the spores but acc to the definition of the sterilization it kills the spores.