Properly stored, whole onions can last for 6 to 8 weeks. However, how long your onions last depends on how you store them and whether they are whole, cut, or cooked.
Here's a more detailed breakdown:
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Whole, Unpeeled Onions: When stored correctly in a cool, dry, and dark place (away from sunlight), whole, unpeeled onions can last for 6 to 8 weeks.
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Peeled or Cut Onions: Once an onion has been peeled or cut, it should be wrapped tightly in plastic wrap or stored in an airtight container and refrigerated. Under these conditions, it will typically last for up to 1 week.
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Cooked Onions: Cooked onions should also be refrigerated in an airtight container and will generally last for 3 to 5 days.
Factors Affecting Onion Lifespan:
- Storage Conditions: The key to extending the lifespan of whole onions is proper storage. Sunlight, temperature fluctuations, and humidity can all cause onions to spoil more quickly.
- Intactness: Whole, unpeeled onions have a longer shelf life than cut or cooked onions. The outer layers of the onion provide a protective barrier against bacteria and moisture loss.
- Variety: Different varieties of onions may have slightly different storage properties.
