The culprits for bad breath were bacteria that live mainly in difficult-to-clean areas of the mouth such as between the teeth and on the top of the tongue. These bacteria like to feast on stagnant saliva. As a result, they give off volatile sulfur compounds as a by-product. When the environment of the mouth becomes dry, these compounds, which smell like rotten eggs, evaporate and become airborne. Here are some ways to ground them for good. 1. Try Odor-Free Eating |