What Is the Best Way to Clean Shower Grout Mold?

The growth of mold is an inevitable problem in the most clean homes. Most of us don’t want to be a victim of it, but nearly 50% of American households are still suffering from the effects of mold and dampness. If you live in a region that is subject to steamy hot and constant spraying of water, there’s no reason to be surprised the grout in showers is one of the preferred sources of breeding.

Mold can indeed be difficult to remove, but it’s far from being as durable as your grout and tile. If you’re savvy, there are myriad ways to get rid of mold without harming your tile installation. If the sagging tile walls and floors keep the enjoyment of your bathing routine, we’ll teach you how to get rid of grout lines in the shower to keep your bathroom looking amazing!


White vinegar that is undiluted inside a spray bottle makes the most effective all-purpose cleaner to clean shower tiles. Spray the grout and let the vinegar rest for at least an hour. Rinse the grout with clean water and then wipe the walls. Use a stiff, spongy brush to get rid of any stuck-on, difficult mold growth.

Distilled white vinegar’s versatility in cleaning is able to solve many problems in the bath, ranging from removing mold to washing soap scum. If you’re shower tracks or caulks, and even the glass door requires cleaning, you can do it all using one solution for cleaning. It is a safe and effective cleaner for mold, and vinegar is the ideal first line of defense if spots start to develop.

Beware! The acidity that helps vinegar be efficient on mineral deposits and mold can also affect grout. Beware of applying the white color of vinegar on grout that is not sealed and stone tiles. Don’t mix vinegar with hydrogen peroxide or bleach since it could create gasses and acids that are dangerous.


Chlorine bleach that is diluted to the ratio of 1:4 bleach to water is a different method to get rid of mold that has been trapped in shower grout. Combine the bleach in a container before you apply it to the shower walls using a dry rag. It should be left for 20-30 minutes before cleaning with a hard scrub brush. Rinse it off with warm water.

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Beware! Bleach can be dangerous for your well-being and shower if it is used improperly. Make sure the area is well ventilated, and wear rubber gloves, masks, and protective clothing when working. Avoid using bleach on grout that has not been sealed because it could cause the material to degrade and decrease its effectiveness when it is absorbed into. While it is sitting on the surface, bleach will also strip colors off of materials and make it a bad option for grout that is colored.

Baking Soda

Baking soda is an easier and safer bleach option for use on mold and mildew in shower grout, such as grout that has been sealed and colored. It’s a fantastic first choice for stains from mold that are emerging. It may also be able to power through the build-up of soap scum.

Create a thin baking soda paste by mixing water with baking soda and then apply it to the grout and tiles stained by mold. Allow the paste to sit for about 10-20 minutes. Rub the area affected using a bristle that is stiff. Make use of an old toothbrush to create tiny grout lines. Rinse in water before wiping the walls using a dry towel.

Tips: For a cleaning boost, baking soda is among the few ingredients you can safely blend with bleach. Baking soda can make bleach more efficient by encasing its flammable substance instead of letting it run across the wall of your shower.

Make a cleaner paste for difficult mold stains by adding some bleach from your household. Apply it to affected areas the same way you would, then let it sit for a few minutes before you scrub. Since you’re adding bleach, make sure not to use the solution on sealed or stained grout.

Hydrogen Peroxide

Hydrogen peroxide is among the most effective options to remove mold from colored and sealed grout. Contrary to bleach, peroxide is able to be used on porous surfaces specifically where mold is looking to expand.

Pour undiluted hydrogen peroxide at 3% into the spray bottle. You are free to use a more powerful either 6% and 12percent hydrogen peroxide to ensure more effective removal of mold. The shower walls are sprayed liberally using the cleanser. Leave it for about 10 minutes. Rub the tile with a stiff brush and then wipe the tile using a damp sponge.

Eliminating mold spores from deep roots is a challenge, even if you’ve seen it disappearing from the surface that you are cleaning. It is possible to clean unsealed or colored grout using hydrogen peroxide without having to worry about discoloring or deteriorating it. This same solution can also eliminate the mold from the shower caulking without affecting the seal.

Tips: Using hydrogen peroxide to eliminate the grout of showers is made easier by putting baking soda back into the mix. Create a thick paste, replacing hydrogen peroxide with water, and then apply it to the growth of mold. Let it sit for 10 minutes prior to scrubbing and wiping it clean.

Oxygen Bleach

In the event that you do not have hydrogen peroxide, You can clean grout using mild mold staining by using oxygen bleach in the laundromat.

Mix oxygen bleach and hot water as per the instructions on the bottle. The mixture should be agitated until the crystals break down. Pour it into the spray bottle and spray the mold, or mix it in an empty bowl and rub it onto the mold using the sponge. Allow the solution to sit for around 15 minutes. Rub off the stain and rinse the area with fresh water to get rid of the bleach solution.


Borax has a higher acidity than baking soda we could look at Borax as an alternative for cleaning grout from shower walls and the floor in bathrooms. Blend Borax together with the water until it forms the consistency of a dense paste. Place the paste in the mold for grout and allow it to rest for approximately 30 minutes. Use a stiff brush to scrub before wiping it clean with an absorbent towel.

Dish Soap

Dish soap will not kill the microbes that live in your shower. It’s nevertheless an effective and safe cleaning solution if you notice visible mold appearing on the grout and tile. Mix dish soap and water, then scrub it into the growth of mold using a hard brush. Alternately, you can apply dish soap on the affected areas and then scrub. Rinse thoroughly with cold water to wash off the soap, and then wipe it off with a dry towel.

Rubbing Alcohol

Rubbing alcohol is a different popular agent to clean mildew and mold from the porous or non-porous surface. A typical bottle that contains 70% isopropyl ethanol will be sufficient, but you can opt for an even more concentrated version.

Clean the grout using water and soap, and allow it to dry prior to applying the cleaning agent rubbing alcohol. Mix a solution consisting of half water and rubbing alcohol. Spray or spread the solution on the swollen part. The solution should run for around 15 minutes before wiping it clean.

Commercial Solution: RMR-86

Nothing is wrong with using a commercial product if the DIY mold remover isn’t doing it. RMR-86 Instant Mold and Mildew Stain Remover Spray is a powerful cleaner that uses bleach as the active ingredient.

It is necessary to wear a protective suit and a respirator hood during the cleaning process due to its power. However, since it claims to get rid of mold in just fifteen seconds, this is a fantastic time-saver to clean even the toughest moldy grout.


The prevention of mold growth in shower grout is always better than cleaning it. In humid environments, that is a problem; stopping the growth of mold is a continuous chore, but these suggestions can make it appear effortless.

Apply a Sealer

A good sealer is the initial step to keep the mold out unless you’re using epoxy grout, which does not require additional protection. Sealers that penetrate into grout’s pores and prevent the infiltration of moisture and pollutants.


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