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What Is the pH of Milk?

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Milk is slightly acidic.

Milk is slightly acidic.

Joseph Clark, Getty Images

Question: What Is the pH of Milk?

Do you know whether milk is considered an acid or a base? Here's a look at the pH of milk.

Answer: The pH of a glass of cow milk ranges from 6.4 to 6.8. Milk is slightly acidic. Milk from other bovines and non-bovine mammals varies in composition, but has a similar pH. The pH of milk changes over time. As milk goes sour, it becomes more acidic and the pH gets lower.

Is Milk an Acid or a Base?

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