Onions stored in a dry place will usually only last about three months before showing signs of rot or sprouting. However, with this simple trick, you can extend their shelf life without compromising quality. Anyone can do this at home.
First, you’ll need a pair of clean, thin stockings and a pair of scissors.
Cut the leg portion of the stockings and place the onions inside. Let the first onion slide down to the toe area and tie a knot above it. Repeat this process for each onion, tying a knot above each one. Leave enough space at the top to tie the stocking into a loop for hanging.
Hang the onion-filled stocking in a dry, cool, and dark place, such as a pantry or kitchen.

Regularly check the onions to ensure none are spoiling. Remove any rotten onions immediately to prevent affecting the rest.
The thin fabric of the stockings allows for good air circulation, preventing moisture and mold when the onions are stacked together.
The elasticity of the stockings provides enough space to hold a large quantity of onions while ensuring proper air circulation.
This method can also be applied to other spices like dried onions, garlic, and ginger. However, it is crucial to hang the stocking in a cool, dry, and dark place to prevent sprouting.
Onions do not require refrigeration to stay fresh. Storing them in the fridge may cause them to soften due to the low temperature and high humidity. If you choose to refrigerate onions, keep them in a box or paper bag to maintain dryness and prevent their strong odor from affecting other foods. Avoid using plastic bags, as trapped moisture can cause the onions to rot faster.
Onions that have sprouted are still safe to consume and won’t harm your health. Unlike sprouted potatoes, which produce toxins, sprouted onions only undergo a slight change in taste and nutritional value as nutrients are diverted to feed the sprout.
Feel free to use sprouted onions as you normally would, but it’s best to consume them sooner rather than later to enjoy their optimal flavor. Alternatively, you can plant the sprouted onions in soil or a glass of water to grow them as houseplants and harvest their leaves or bulbs.
When storing onions, keep them away from ripe fruits like bananas, apples, and papayas. These fruits emit ethylene gas, which accelerates the ripening and spoilage of onions and other vegetables.
If you notice any mold or rot on the onions, discard them immediately.