My grandmother always sticks a clove into an onion. When I found out why she did it, I was amazed because I had never seen anything like it before Now I do it too, and I love this trick! I’m going to explain why you should put a clove into an onion See the detail in first comment.

Helps prevent yellowing leaves caused by iron deficiency in soil
Gardeners sometimes bury an iron nail near plants to naturally fertilize the soil!3. Enhances Onion’s Antibacterial Properties
Onions are natural disinfectants, and iron may enhance their antimicrobial effects
Used in some folk remedies to treat infections & purify water
A common trick in natural medicine practices
Some believe that placing an iron nail in an onion overnight increases its medicinal benefits!

4. A Traditional Cooking & Pickling Trick
Used in old-fashioned pickling recipes to deepen color & flavor

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