Why boiling packet milk can reduce its nutrition, according to a senior expert

             Written by: Mantasha

3 December 2025

Many people still boil packet milk out of habit. But modern packaged milk is already treated for safety, and boiling it again may actually lower its nutrition. Here’s what you need to know.

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Pasteurization kills harmful bacteria at controlled temperatures. This means the milk is safe to drink without extra boiling.

Packet Milk Is Already Pasteurized

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When you heat milk again, it removes heat-sensitive vitamins including B2, B12, and C. The more you boil, the less nutrients you receive.

Re-Boiling Breaks Down Nutrients

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Overheating can make milk proteins tougher and harder to digest. This may cause bloating or heaviness for some people.

Boiling Changes the Protein Structure

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If you prefer warm milk, just heat it gently. Avoid bringing it to a full boil, warming keeps nutrients intact.

When Should You Warm It?

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If you buy raw, unpasteurized milk from local vendors, boiling is necessary. But packet milk doesn’t fall in this category.

Exception: Raw Milk

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Boiling packet milk is an old habit, not a necessity. Gentle heating is enough to keep nutrients and taste intact.

 Kind Reminder 

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