I noticed my toothbrush had an off odor to it so I started rinsing it with hydrogen peroxide after I rinse it under the tap water. By the time I use it again, it has air-dried. Now my toothbrush looks and smells very clean. Also, after oil pulling, I rinse my mouth with warm salt water. If you do this, be sure to use Sea Salt to avoid the chemicals added to regular salt. This won't harm the enamel as the salt is dissolved in the warm water first. Here are two more links on how to oil pull: