This is why grandma always puts cloves in an onion 1

Placing cloves in an onion can help slow down spoilage and prevent mold growth due to cloves’ antifungal and antibacterial properties. This trick keeps onions fresh longer, especially in warm or humid climates.

Other potential benefits:
✔ Aromatic Flavor Booster – Some people stick cloves into an onion while cooking soups or stews for extra depth of flavor.
✔ Natural Room Freshener – The combination of onion and cloves can neutralize bad odors in the kitchen.