Which of these combinations is used for heating milk in the UHT technique?

Options

A. `98^(@)C` for 2 minutes
B. `98^(@)C` for 2 seconds
C. `135^(@)C` for 2 minutes
D. `135^(@)C` for 2 seconds

Answer

To answer the question about the combination used for heating milk in the UHT (Ultra High Temperature) technique, follow these steps:

### Step-by-Step Solution:

1. **Understand the UHT Technique**:
- UHT stands for Ultra High Temperature. It is a method used to sterilize milk by heating it to a very high temperature for a short period.

2. **Identify the Purpose of UHT**:
- The main purpose of this technique is to kill harmful microbes present in the milk, ensuring that it is safe for consumption.

3. **Know the Specifics of the UHT Process**:
- In the UHT process, milk is heated to a temperature of 135 degrees Celsius.

4. **Determine the Duration of Heating**:
- The milk is kept at this temperature for a very short time, specifically for only 2 seconds.

5. **Conclusion**:
- Therefore, the correct combination of temperature and time used in the UHT technique is 135°C for 2 seconds.

### Final Answer:
The combination used for heating milk in the UHT technique is **135°C for 2 seconds**.

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