Yes, refrigerating onions is generally better for long-term storage compared to leaving them at room temperature. Onions have a higher moisture content than many other vegetables, and storing them in the refrigerator helps slow down the process of sprouting and spoilage. Here are some guidelines for storing onions in the fridge:
Whole onions with the skin intact: Store them in a cool, dry, and well-ventilated area in your refrigerator. You can place them in a mesh bag or a perforated plastic bag to maintain proper airflow and prevent condensation. Whole onions can last in the fridge for up to two to three months.
Peeled or cut onions: If you have leftover peeled or cut onions, store them in an airtight container or wrap them tightly in plastic wrap. Cut onions can be stored in the refrigerator for up to 7-10 days.
It's essential to keep onions separate from certain fruits and vegetables in the fridge, as they can release gases that might cause onions to spoil more quickly. For instance, avoid storing onions with potatoes, as the gases they release can accelerate each other's decay.
If you have a surplus of onions that you won't use before they go bad, you can consider freezing them. While freezing can affect their texture, frozen onions are still great for cooking purposes like soups, stews, and sauces.
Remember that proper storage and handling are crucial to extending the shelf life of onions. Always inspect your onions for any signs of spoilage or sprouting before use, and discard any that appear mushy, moldy, or have green sprouts emerging from the top.