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How should onions be stored?

Judy Caplan
Nutrition & Dietetics

Whole onions should be stored in a cool, dry open space away from bright light. Bright light can turn an onion's flavor bitter. Onions do best in storage when there is air circulation. They can be spread out in a single layer or hang them in a basket. Onions absorb moisture and this can lead to spoilage. Do not store them under the sink or place them near potatoes. Potatoes give off a gas and moisture that can spoil onions quickly. Onions can be stored for three or four weeks. If an onion begins to sprout it will turn mushy. The sprout can be used as a scallion.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.