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How long does onions last?
Updated 2026-05-13 · USDA FoodKeeper & FDA guidelines
Pantry / counter
2 months
Cool dry dark place, mesh bag for airflow
Refrigerator
2 weeks
Only after cutting
After opening
1 week
Cut onion, sealed container, refrigerated
The short answer
Onions lasts as long as you store it correctly — which can mean anywhere from a few days on the counter to a year in the freezer. The numbers above represent best quality per USDA and FDA guidelines, not absolute safety limits.
Why these numbers vary
Pungent allium bulb. Storage life depends on temperature consistency, humidity, packaging, and how fresh it was when you got it. Refrigerators that swing between 38°F and 45°F shave days off these numbers; vacuum-sealing or freezing extends them.
How to tell if onions is bad
- Soft mushy spots
- Sprouting (still usable)
- Black mold at neck
- Strong rancid smell
Storage tips
- Don't refrigerate whole — they turn mushy
- Keep away from potatoes
- Cut onion in sealed container, fridge 7 days
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Frequently asked questions
How long does onions last in the pantry / counter?
Onions lasts 2 months in the pantry / counter. Cool dry dark place, mesh bag for airflow
How long does onions last in the refrigerator?
Onions lasts 2 weeks in the refrigerator. Only after cutting
How long does onions last in the after opening?
Onions lasts 1 week in the after opening. Cut onion, sealed container, refrigerated
How can you tell if onions is bad?
Watch for: Soft mushy spots; Sprouting (still usable); Black mold at neck.