How long does an onion expire

Food Science

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Answer

The shelf life of an onion depends on its type, how it's stored, and whether it's whole or cut.

Whole, Uncut Onions:

  • Pantry/Cool, Dark Place: Whole, uncut onions can last for 2 to 3 months when stored in a cool, dry, dark, and well-ventilated place (like a pantry or cellar).
  • Refrigerator: While not ideal due to moisture, they can last for about 1 to 2 months in the refrigerator, though they might become soft more quickly.

Cut Onions:

  • Refrigerator: Once cut, onions should be stored in an airtight container in the refrigerator and will typically last for 7 to 10 days.

Cooked Onions:

  • Refrigerator: Cooked onions can be stored in an airtight container in the refrigerator for 3 to 5 days.

Signs of Spoilage:

  • Soft spots or mushy texture
  • Dark patches or mold
  • Sprouting (while still edible, it can affect flavor and texture)
  • Strong, unpleasant odor
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