Store in a Cool, Dry, and Well-Ventilated Area Onions should be stored in a cool, dry place with good air circulation, such as a pantry, cellar, or garage. A temperature range of 45-55°F (7-13°C) is ideal. Avoid storing them in the fridge, as moisture can make them soft and sprout quickly.
Use a Mesh Bag or Basket To ensure proper ventilation, store onions in a mesh bag, ventilated basket, or wire rack. This allows air to circulate around them, preventing moisture buildup and mold growth, which can cause them to spoil faster.
Keep Whole Onions Separate from Potatoe Onions and potatoes should not be stored together. Potatoes release moisture and gases that can cause onions to rot faster. Keep them in separate storage areas to maintain freshness.
Avoid Storing in Plastic Bag Never store onions in plastic bags, as this traps moisture and reduces air circulation, leading to quicker decay. Instead, opt for breathable bags or containers.
Do Not Cut Until Ready to Use Once onions are cut, their shelf life significantly shortens. If you have leftover cut onions, place them in an airtight container in the refrigerator. They will last for about 7-10 days when stored properly.
For Longer Storage, Freeze for Future Use If you have excess onions, freezing is an option. Chop onions and blanch them briefly in boiling water, then freeze in a single layer before transferring to an airtight container or freezer bag. Frozen onions are best used in cooked dishes.
Check Regularly for Softness or Spoilage Periodically check your onions for signs of sprouting or softness. Remove any affected onions to prevent them from affecting the rest.