What is pasteurization?
Pasteurization is the process of heating food or liquids, especially milk, to a specific temperature for a short time and then cooling them quickly to kill harmful microorganisms without greatly affecting the quality of the product.
This method was developed by the scientist Louis Pasteur.
Pasteurization helps:
Destroy disease-causing microorganisms
Prevent food spoilage
Increase shelf life
Maintain food safety
In milk pasteurization:
Milk is heated to a specific temperature
It is kept at that temperature for a short time
Milk is rapidly cooled
This kills most harmful bacteria while preserving taste and nutrients.
| Method | Temperature and Time |
|---|---|
| Low-temperature method | 63°C for 30 minutes |
| High-temperature short-time (HTST) | 72°C for 15 seconds |
Milk
Fruit juices
Dairy products
Some packaged beverages
Pasteurization is important because it:
Prevents diseases spread through contaminated food
Improves food safety
Reduces bacterial growth
Extends storage life of products
Pasteurization kills most harmful microbes but not all microorganisms.
Sterilization destroys all microorganisms completely.
Pasteurization is widely used in the food industry to provide safe and hygienic products.