Ever notice gritty brown stains on the inside of your coffee mugs? Even if you give them a quick rinse after every use, that buildup is still there thanks to tiny molecules called tannins. While they seem to stick no matter what, there’s actually a super easy trick to get rid of those mug stains in a few minutes without any harsh chemicals.
All you need for this cleaning process is a lemon wedge, baking soda, and a sponge or paper towel. First, rub the lemon wedge all around the inside of your mug. Lemon’s acidity can help break down stains on the surface. Next, coat the entire inside of your mug with a tablespoon or two of baking soda. It doesn’t need to be a super thick layer, but you do need enough so that the baking soda reacts with your lemon juice base. You’ll know the chemical reaction is working if you see some light fizzing coming from the surface.
After you’ve added your baking soda, let the concoction sit for two minutes, then use your sponge or paper towel to scrub away the mug stains. Wash your mug thoroughly to make sure you gotten rid of any traces of lemon juice and baking soda, then you’re all set to use it again!
And if you’re wondering how you can keep those mug stains away in between uses, be sure to give your mug an actual wash once you’re done every time, and don’t leave cups of coffee or tea sitting out for hours — or days. (Hey, we’ve all done it before.) If tea is your beverage of choice, steep your teabag for only the recommended amount of time on the packaging, because the longer it’s in your mug, the more tannins are released. Other than that, enjoy whatever you’re drinking!