Best Method recommended method with best effort-to-efficacy tradeoff 2-3 months
Dark Pantry
- Do NOT wash—keep papery skin intact
- Store in mesh bag, basket, or ventilated bin
- Keep in cool, dark, well-ventilated spot never refrigerate—causes sprouting
- Keep away from potatoes they cause each other to spoil faster
Cut/Prepared storage method for produce that has been cut open (shorter duration, different handling) 7-10 days
Cut Onions
- Store cut onion in airtight container seals in odor and prevents drying
- Refrigerate immediately cut onions must be refrigerated unlike whole
Freezing freezing method 10-12 months
Frozen
- Peel and dice or slice
- Transfer to freezer bags texture changes—best for cooking
- Best for cooked dishes
Long-term preservation
- Dehydration Suitable for drying/dehydrating. Learn about dehydration
- Freeze drying Suitable for freeze drying. Learn about freeze drying
Revival Tips
Sprouted onions are still edible but should be used quickly. Green sprouts can be used like scallions.
Fun Facts
- Onions and potatoes release gases that cause each other to sprout and spoil faster—always store separately.
- The papery skin protects the onion; once peeled or cut, refrigerate in an airtight container.