Question

why do milks in poly bags do not get spoiled

Answer 1

Answer:

Milk in poly packs does not get spoiled because it prevents air from entering which protects the milk against harmful bacteria. Apart from that milk is pasteurized before packaging which prevents it from harmful microbes.

Answer 2

Answer:

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Milk in poly packs does not get spoiled because it prevents air from entering which protects the milk against harmful bacteria. Apart from that milk is pasteurized before packaging which prevents it from harmful microbes.