Pasteurisation is carried out at

Options

A. `30^(@)`C for 20 minutes
B. `40^(@)`C for 30 minutes
C. `30^(@)`C for 60 minutes
D. `62^(@)`C for 30 minutes.

Answer

**Step-by-Step Solution:**

1. **Understanding Pasteurization**: Pasteurization is a process used to kill harmful bacteria in food and beverages, particularly in milk. It involves heating the liquid to a specific temperature for a certain period.

2. **Identifying the Options**: The options provided for the temperature and time of pasteurization are:
- A) 30°C for 20 minutes
- B) 40°C for 30 minutes
- C) 30°C for 60 minutes
- D) 62°C for 30 minutes

3. **Recalling the Standard Pasteurization Temperature**: The classic method of pasteurization for milk involves heating it to about 63°C for approximately 30 minutes.

4. **Comparing Options**: Among the given options, the one that is closest to the standard temperature of 63°C is:
- D) 62°C for 30 minutes

5. **Conclusion**: Therefore, the correct answer to the question "Pasteurization is carried out at" is **62°C for 30 minutes**.

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