The only way i know how is to follow these steps 1. Remove from packaging 2. Plug it in 3. Add cleaning solution such as dish detergent 4. Add in items to be cleaned 5. Adjust settings / timer 6 turn it on 7. Wait patiently. 8. Rinse when done 9. Dry by hand or air dry 10. ENJOY * if still not clean add toothbrush after step 8 ** if still not clean redo and start at step 4