How Do You Make Onions Last Longer?

Yes, onions are safe to eat after cutting. When handled properly, sliced onions are not a health threat. After slicing, onions may be stored in the refrigerator for up to 7 days if they are kept in a well-sealed container.

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• Homemade Potato Chips. The next time you need that satisfying, salty crunch of a potato chip, whip up a homemade batch using this tried-and-true recipe.
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• Diane Morgan’s Classic Mashed Potatoes.
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• Garlicky Roasted Potato Salad.
• Potato Salad With Celery & Hard-Boiled Eggs.

• The best way to store whole onions is in a cool, dark, dry place, where they can last up to two months.
• Peeled, chopped, and cooked onions can last up to a week when stored in the fridge.
• Never store onions near potatoes or you’ll risk speeding up the aging process of both vegetables.
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While the fridge isn’t ideal for storing onions, it will extend the shelf life of whole, raw onions beyond a week at room temperature. Onions absorb moisture very easily however, so their texture may get somewhat soft in the fridge. Whole, raw onions can last in the fridge for up to two weeks.