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Pasteurization of milk involve heating for

1. 60 minutes at about 90°C
2. 30 minutes at about 50°C
3. 30 minutes at about 65°C
4. 60 minutes at 100°C

Correct answer: 30 minutes at about 65°C

Solution

Pasteurization uses controlled heating to destroy harmful microbes while preserving milk quality. The classic method is heating milk to about 63–65°C for around 30 minutes, which matches option C.

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