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What causes food to expire?

Updated: 10/6/2023
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Wiki User

15y ago

Best Answer

Food will decay if bacteria or fungi is on the food because fungi and bacteria are living organisms so they eat at the flesh of the food which cause the fungi to spread or cause the bacteria to multiply which eventually will cause the food to eventually be 100% decomposed.

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13y ago
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9y ago

Food gets stale over time because of the process of retrogradation. Food looses its moisture once exposed to room temperature and eventually bacteria attacks causing the food to stale.

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15y ago

bacteria and chemical reactions.

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