Yes, you read correctly! Toilet bowl brushes harbor bacteria. You even encourage bacteria growth by putting it back into the caddy while it is still wet! To disinfect the brush, pour 1/2 cup of bleach into the toilet bowl and let the brush sit in it for a few minutes. Then, ALWAYS, dry the brush by putting the handle under the closed toilet seat so the brush drips into the bowl until it dries (about 10 minutes). Now the brush is ready for the next job.