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I stored a freshly cut onion with butter spread over the top and wrapped it with aluminum foil. It stayed fresh for three weeks. Is this a safe way to store onions

Marty
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  • Hi, I'm closing it as a duplicate, because while the linked question says "garlic", the food safety rules are the same for any raw plant matter you might add to your butter. – rumtscho Feb 03 '20 at 09:12

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Onions have natural antibacterial and antiseptic properties. Butter spread is just fat that don't allow air to penetre thus not making it mold friendly.

I would say it's safe but there is no need to store cut onion. It's better to have onion head whole and cut as needed. If they start to sprout you cut the upper part put in the ground and have some fresh green onions.

SZCZERZO KŁY
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