#Define pasteurization:
Pasteurization is a process that is done by applying the process heat to maintain the normal condition of food and the bacteria that are released only by the disease. This process is a waste of food poisoning.source

Process of milk pasteurization ;,,,,,,
Milk is usually pusturized in two ways
1.Holding method
2.Hy traction short time system

#Holding method ... The primary and simplest method of pashurizing milk. In this method, milk and cream are stirred in the tank. It is operated for about 30 minutes at a temperature of 62.8 ° C and then cooled quickly. In some dairy areas, little BASI temperature is used in the industry, while the hold time decreases. Various types of Holding Pasteurizers are available in the market.
For example,

1. Coal VAT
   2.Spread VAT Pasteurizer etc.
   But HTST is most commonly used.source

#High-temporal short-time method: In this method, milk is processed by at least 71.7 ° C and 15 seconds. It is equally suitable for the holding system to kill bacteria.
In this process, the main action of milk is to be carried out. It should also be kept in mind that the temperature does not reach 71.7 ° and the time is not less than 15 seconds. Finally, remove the milk from the holding tube and cool down and have to be bottled.source