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A: Chopped or sliced onions can be stored in a sealed container in your refrigerator at the proper temperature of 40Â°F or below for 7 to 10 days (Source: USDA). For pre-cut fresh or frozen products, always use and follow manufactures use by dates.
How long do chopped onions last? The precise answer to that question depends to a large extent on storage conditions - keep chopped onions refrigerated. To maximize the shelf life of chopped onions, refrigerate in covered container or resealable plastic bag or wrap tightly in aluminum foil or plastic wrap. How long do chopped onions last in the fridge? Properly stored, chopped onions will last for 7 to 10 days in the refrigerator. Can you freeze chopped onions? Yes, to freeze: Place in airtight containers or heavy-duty freezer bags, or wrap tightly in heavy-duty aluminum foil or plastic wrap.