If you noticed some small black stains on the shower caulking, you probably need to take action, because you are dealing with mold. Mold often grows in moist and warm places and it quickly spreads all over the place, especially on porous areas such as grout and caulk. However, mold should be removed immediately, because some types are extremely toxic and dangerous for your health. Since there are a lot of chemical products on the market, especially designed to kill mold, you can choose your favorite, but at the same time, you should know that there are other household products extremely effective. So, you can skip exposing yourself to harmful chemicals and choose eliminating mold with natural supplies.

How to kill this black fungus with some natural tricks

Needed Supplies:

  • baking soda
  • 1 cup of vinegar
  • rag
  • bleach
  • water


Mix 1 cup of vinegar with baking soda until it forms a thick paste. Then scoop 1 tablespoon of the baking soda paste onto a damp rag. Rub the paste into the mold on the sealant. Allow the paste to act on the sealant for 5 minutes, giving the vinegar time to soften the mold. Scrub the paste using an old toothbrush. After 5 minutes, rinse the mold and baking soda paste from the sealant with a wet sponge and cool water.

The final step is to mix one part bleach with four parts water and pour into a spray bottle. Spray the sealant with the bleach mixture. Allow the bleach to evaporate on the sealant and kill any lingering mold spores. Scrub once more with the baking soda paste if mold stains remain on the sealant. Rinse the sealant with cool water and dry with a towel.

Important!! Don’t forget to cover your mouth and nose while using the bleach to avoid inhaling its toxic fumes. If you want to avoid bleach, you can resume only to the first mold removing method based on vinegar and baking soda. However, you should leave the baking soda paste act for 20 minutes and spray undiluted vinegar abundantly over it then leave it act for another 10 more minutes.