How to Kill Mold on Caulk


The caulk used to grout shower tiles will eventually start to mildew and grow mold if you do not clean it regularly. If you have acquired mold on your caulking, you can effectively remove it using the right solution of household items. If you do not remove the mold, it will stain the caulking and, eventually, necessitate replacing the caulk completely.

Things You'll Need

  • 1/2 cup hydrogen peroxide or apple cider vinegar
  • Spray bottles
  • Toothbrush
  • Mix 1/2 cup of hydrogen peroxide or apple cider vinegar into 1 cup of water and pour the mixture into a spray bottle.

  • Spray the moldy caulk with the solution and let it work on the mold for 10 to 15 minutes.

  • Scrub the caulk with a soft bristle toothbrush to remove the mold. Spray additional mixture onto the moldy surface while you scrub the mold off the caulking.

  • Spray the caulk clean with the shower head or with a spray bottle filled with clean water.

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