Desribe the method of pasteurisation for the preservation of milk.

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Pasteurization**: Pasteurization is a method of preserving food, particularly liquids like milk, by heating them to a specific temperature for a short period of time to kill harmful microorganisms.

2. **Inventor**: The method was developed by the French scientist Louis Pasteur in the 19th century.

3. **Process**:
- The milk is heated to a temperature of about 70 degrees Celsius (not 700 degrees as mentioned in the transcript, which seems to be an error).
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