Don’t have lemons? No problem. White vinegar is your affordable, acidic friend. Soak the stained area in undiluted white vinegar for about 15 to 30 minutes. Don’t let it dry, though. After soaking, rinse it thoroughly and then rub a little liquid laundry detergent into the spot.
This method works best on cotton and denim. It’s not great for delicate fabrics like silk or wool, because vinegar can eat away at animal fibers. Think of it like this: vinegar is a bouncer that politely but firmly escorts the rust out, but it’s a little rough with the furniture.
