Why My Grandmother Always Puts a Nail in the Onion – A Surprising Old Trick

How to Try This Trick Yourself!

1️⃣ Take a clean, rust-free iron nail (or let it develop a natural rust coating).
2️⃣ Insert it into an onion and leave it overnight (or for a few days).
3️⃣ Use the onion in cooking, compost it, or plant it in the garden for added iron benefits!
💡 For safety, always use food-grade iron nails if consuming the onion!
Final Thoughts – A Simple Trick with Big Benefits!
💡 Whether for increasing iron intake, enhancing gardening, or pickling tricks, placing a nail in an onion is a fascinating old-school hack worth trying!