Whole OnionShelf Life, Storage, and Spoilage Guide
Pantry
1-3 months
Store whole, dry onions in a cool, dry, dark, and well-ventilated place. Do not store with potatoes, as they release gases that can cause spoilage.
Refrigerator
Not RecommendedNot recommended for whole, unpeeled onions
Refrigerating whole, unpeeled onions can make them soft and reduce their shelf life. Once peeled or cut, store in an airtight container in the refrigerator for 7-10 days.
Freezer
Not RecommendedNot recommended for whole, raw onions
Freezing whole, raw onions is not recommended as it can make them mushy. For best quality, chop onions before freezing. They can be frozen for 3-6 months.
Signs of Spoilage
- Soft spots or mushy texture
- Mold growth
- Strong, unpleasant odor
- Discoloration
- Sprouting (while not unsafe, indicates aging and potential flavor/texture changes)
Room Temperature Safety
40°F–140°F (for cut onions)
Store whole, unpeeled onions in a cool, dry, dark place. Any cut or peeled onions must be refrigerated promptly to prevent bacterial growth.
Safe Handling
Wash hands thoroughly with soap and water before and after handling onions.
Use clean cutting boards and utensils to prevent cross-contamination.
Separate raw onions from other foods that will be eaten raw.