Okay, this one sounds fancy, but cream of tartar is actually a common baking ingredient—a powdery acid leftover from winemaking. Mix it with a little hydrogen peroxide or lemon juice to make a paste, and you’ve got a rust-erasing mud. It’s especially amazing on sinks, bathtubs, and countertops.
Rub the paste onto the stain with a soft cloth, let it dry, then rinse. It’s like giving that spot a gentle spa treatment that also murders rust. For extra stubborn stains, let the paste sit for up to two hours. Patience, my friend—rust didn’t appear in a minute, so it won’t disappear in one either.
5 Ways to Remove Iron Stains - wikiHow
