No, you should not store onions and garlic in the same bin. Onions emit gases that can cause garlic to sprout and spoil faster.
Storing onions and garlic together is generally not recommended due to their different storage needs and the potential for cross-contamination of odors and gases. Onions release ethylene gas, a ripening agent that can accelerate the sprouting and softening of garlic bulbs. This leads to a shorter shelf life for your garlic. Ideally, onions and garlic should be stored in separate, well-ventilated areas. Onions prefer a cool, dry, and dark place, while garlic also benefits from good air circulation but can tolerate slightly warmer temperatures. Proper storage ensures both stay fresh and usable for a longer period.
Store onions in pantyhose! Place each onion in a separate knot, and hang the pantyhose in a cool, dark, and dry place. This provides excellent ventilation and prevents them from touching, extending their shelf life significantly.