Onions can last for weeks or months when stored correctly, but improper storage leads to sprouting, softness, or mold.
How to store onions correctly
To store onions correctly, keep them in a cool, dry, well-ventilated place away from light and moisture.
Why onions spoil in storage
Onions release moisture and gases that accelerate spoilage in closed or humid environments. Refrigeration also increases softness and mold risk for whole onions.
Cut onions have completely different storage needs.
Step-by-step method to store onions
This method works for whole onions.
- Remove onions from plastic packaging.
- Store in mesh bags or open baskets.
- Keep away from potatoes.
- Store in a dark, cool place.
- Refrigerate only cut onions.
How long onions last
Whole onions last 1–3 months when stored properly. Cut onions last up to 7 days in the fridge.
Common mistakes when storing onions
- Storing onions in plastic bags.
- Keeping onions near potatoes.
- Refrigerating whole onions.
- Ignoring soft or moldy spots.
Conclusion
Onions store best with airflow and dryness. Correct placement dramatically extends shelf life.