Caulk used to seal bathtubs, showers, and sinks is a prime target for mold and mildew. Lack of ventilation combined with high humidity can promote mold and mildew growth. Mold can cause black, green, brown, and even orange stains. In addition to being a health risk, mold is smelly and unsightly. Here's a tip for removing it:
2. Apply this solution to the caulk using a sponge or cloth, thoroughly saturating the caulk. Allow the solution to dwell of the caulk for 10 minutes.
3. Using a soft-bristled brush, dip the brush into the bleach solution and gently scrub any remaining mold or mildew.
4. Thoroughly rinse the caulk with warm water and dry it with a towel.
If Green Cleaning is more appealing to you, try this method:
2. Apply the juice or vinegar to the caulk.
3. Allow the cleaning solution to dwell for one hour.
4. Rinse the caulk thoroughly with a wet sponge and dry with a towel.