Pasteurisation of milk involve heating for

Options

A. 60 min at about `90^(@)`
B. 30 min at about `50^(@)`
C. 30 min at about `65^(@)`
D. 60 min at about `100^(@)`

Explanation

**Step-by-Step Solution:**

1. **Understand the Process of Pasteurization**: Pasteurization is a method used to sterilize milk by applying mild heat to eliminate pathogens and improve the quality of the milk for consumption.

2. **Identify the Benefits of Pasteurization**:
- **Sterilization**: It removes harmful pathogens from raw milk.
- **Shelf Life**: It increases the shelf life of milk by preventing spoilage.
- **Taste and Quality**: It helps maintain the taste and quality of the milk.

3. **Determine Standard Conditions for Pasteurization**:
- The standard temperature range for pasteurization is between 60 to 70 degrees Celsius.
- The duration of heating is typically around 30 minutes.

4. **Evaluate the Given Options**:
- Option 1: 60 minutes at about 90 degrees Celsius (Incorrect)
- Option 2: 30 minutes at about 50 degrees Celsius (Incorrect)
- Option 3: 30 minutes at about 65 degrees Celsius (Correct)
- Option 4: 60 minutes at about 100 degrees Celsius (Incorrect)

5. **Select the Correct Answer**: Based on the evaluation, the correct answer is **Option 3: 30 minutes at about 65 degrees Celsius**.

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