How long do onions last?
They keep in the fridge for about 2 months.
Product: Whole onions.

Shelf life of onions at a glance
| Storage | Keeps |
|---|---|
| Room temperature | 1 month |
| Fridge | 2 months |
| Freezer | 10 months |
In a cool, dark, dry place away from potatoes, whole onions often keep for months. Cut onions keep about 4 to 5 days in the fridge.
How to tell if onions have gone bad
The times on this page are guideline values for food stored properly. Check how it looks, smells and feels: mold, slime, an off smell or mushy spots mean it goes in the trash. Eat raw meat and fish strictly within these times, and never past a "Use By" date.