Does microwaving a toothbrush kill germs?
How to Sterilize a Toothbrush in the Microwave. Germs that build up on your toothbrush can be a health risk to you and your family. But you don’t need expensive steamers or a special toothbrush to kill these germs. Even when the water boils in the microwave, your toothbrush bristles should be completely under water.