Q » How does milk spoil over time?

Timothy

30 Oct, 2025

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A » Milk spoils due to the growth of bacteria, yeast, and mold over time. Initially, pasteurized milk is free from harmful microbes, but once exposed to air, it becomes susceptible to these microorganisms. They break down lactose, the sugar in milk, producing lactic acid, which causes the sour taste and unpleasant odor. Proper refrigeration slows this process, but eventually, milk will spoil as microbial growth continues.

Michael

30 Oct, 2025

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A »Milk spoils over time due to bacterial growth, primarily from lactic acid bacteria. As bacteria multiply, they ferment lactose, producing lactic acid and causing the milk to curdle and sour. Temperature, storage, and handling practices influence the spoilage rate. Proper refrigeration slows bacterial growth, extending milk's shelf life.

David

30 Oct, 2025

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