Garlic and onions are delicious in a dish, but sometimes they might leave a bad taste lingering in your mouth. So what’s the best way to get rid of it? Purdue University’s Cordelia Running says aftertastes are usually caused by “little bits of actual flavor stimuli that might hang around [the mouth.]” Potent foods, like garlic and onions, can cause a lengthier aftertaste as molecules associated with their taste and scent can get into the bloodstream and circulate throughout the body. Brushing and flossing are good first lines of defense against a bad aftertaste, but if they get into your bloodstream those measures won’t help. A study from 2016 suggests eating apples, mint leaves, or lettuce to get rid of an aftertaste, as they may counteract the stinky molecules in your blood. If none of those things work you’ll just have to wait it out. To prevent the aftertaste in the first place be sure to cook garlic and onions before eating them as this neutralizes their potent enzymes, and therefore cuts down on their aftertaste.