Choose your own way to enjoy eating Zellie’s mints, Polar Bears, and gum! Crunch, suck or chew- it doesn’t matter! When you taste the sweet xylitol in your mouth, you know it is working. Once the taste has gone, the bacteria in your mouth will have absorbed the xylitol. Good bacteria will flourish and harmful plaque will become slippery. There’s no need to chew gum after the taste has gone.