SAEDNEWS: Proper onion storage can help preserve freshness, prevent sprouting, and reduce spoilage. Keeping onions in a cool, dry, dark, and well-ventilated place is one of the simplest ways to extend their quality at home.
According to SAEDNEWS, the ideal place for storing whole onions is a cool, dry, dark, and well-ventilated area. Excess moisture can encourage mold and spoilage, while heat and light may cause onions to sprout more quickly. A pantry, dry cupboard, or another suitable storage area away from direct sunlight can work well.
Good ventilation is important for maintaining onion quality. Store onions in a mesh bag, basket, or another breathable container rather than a sealed plastic bag. Allowing air to circulate around the onions helps prevent moisture from becoming trapped and reduces the risk of soft spots and mold.
Moisture is one of the main causes of onion deterioration. Avoid storing whole onions near sinks, damp areas, or places where condensation commonly occurs. It is also better not to wash onions before storing them because excess moisture can shorten their storage life.

Even under good conditions, onions should be checked from time to time. Remove any onion that becomes soft, damaged, or moldy so that deterioration does not spread to nearby onions. Keeping the storage area clean and dry can also help maintain better quality.
Once an onion has been cut, its storage needs change. Place the unused portion in a clean, tightly covered container and refrigerate it. Using cut onions within a few days is generally best for maintaining their quality, while whole, dry onions can usually be stored for much longer under suitable conditions.