How long does onions last?
Pungent allium bulb.
Onions shelf life chart
All times are best-quality guidelines based on USDA FoodKeeper and FDA storage data. Actual shelf life depends on temperature stability, packaging, and how the food was handled.
| Storage | Time |
|---|---|
| Pantry / room temp | 2 months |
| Refrigerator (40°F / 4°C) | 2 weeks |
| After opening | 1 week |
Can you freeze onions?
Freezing onions is generally not recommended. Texture, flavor, and structure change significantly when frozen, and the resulting product is often unappetizing. Refer to the storage chart above for fridge and pantry options.
What to do if…
What if my onions is past the printed date?
What if it smells weird but looks fine?
Can expired onions make you sick?
Yes — but the printed date isn't the trigger. Foodborne illness comes from bacterial growth (Salmonella, E. coli, Listeria, Staphylococcus) or fungal toxins, which depend on storage temperature and time, not the calendar date on the package.
Symptoms of food poisoning typically appear within 6–48 hours and include nausea, vomiting, diarrhea, stomach cramps, and fever. Severe cases — especially in young children, elderly, pregnant, or immunocompromised people — warrant medical attention. The safest practice: when in doubt, throw it out.
Frequently asked questions
How long does onions last in the fridge?
How long does onions last after opening?
How can I tell if onions has gone bad?
Can I eat onions past the "best by" date?
Related shelf-life guides
Signs onions has gone 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
More vegetables
Disclaimer: Times shown are USDA/FDA-recommended best quality periods, not absolute safety guarantees. Storage conditions, packaging, and food handling all affect actual shelf life. When in doubt, throw it out.