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How To Clean Mold in Shower Grout Naturally

How To Clean Mold in Shower Grout Naturally

A humid environment promotes the growth of mold and mildew. Showering in the bathroom can create ideal conditions for mold spores to colonize the ceiling and surfaces.

Strong chemicals can remove mold from tile grout but can also damage the seal and discolor the tiles. It has the potential to cause skin irritation if not properly protected.

As a result, it is advised to continue using natural cleaning methods for mold. You almost certainly have natural cleaning products in your home. You can prevent major health problems associated with molds, such as allergic responses and asthma, by eliminating them naturally.

How To Clean Mold in Shower Grout Naturally

Strong chemicals like bleach and ammonia can seriously affect the tile grout. Bleach can seep into the grout pores and give mold spores a source to thrive. Natural cleaning like tea tree oil, baking soda, vinegar, and hydrogen peroxide can eliminate mold from shower grout without hesitation. So, here are some effective ways to naturally eliminate mold from shower grout.

Method-Specific Tools and Materials

  • Baking soda
  • White vinegar
  • Hydrogen peroxide
  • Spray bottle
  • Borax 
  • A bowl
  • Soft-bristled brush 

Prepare Yourself Before Cleaning Mold in the Shower Grout

Prepare Yourself Before Cleaning Mold in the Shower Grout

Prepare all the tools and materials under the following method you intend to use. Gear yourself with a proper mask, goggles, and gloves to prevent inhaling the mold spores. Open all the windows and doors of the bathroom to let the mold spores head outside. 

Using Baking Soda

Using Baking Soda To Eliminate Mold From Shower Grout

One of the most preferred natural ways to eliminate mold from shower grout is by applying baking soda. It is a safe and environment-friendly cleaning agent that does not harm humans and animals. 

Sprinkling baking soda powder or its paste helps absorb water from the grout and prevents the water supply from molding. It also acts as a natural deodorizer, eliminating the musty smell of mold and mildew. 


  1. Make a thin paste by combining 2 cups of water and one tablespoon of baking soda. For stronger results, you can replace water with vinegar.
  2. Dip a soft-bristled brush into the mixture, and start scrubbing the grout.
  3. With a wet towel, wipe away the baking soda residue.
  4. Repeat the process if necessary.

Use Tea Tree Oil

Tea Tree Oil Is a Natural Method To Abolish Mold in the Grout

The tea tree is well known for its natural effectiveness in eliminating mold. It is a safe cleaning agent which is harmless to humans and animals. Its potent earthy smell also helps abolish the musty smell in the shower. But, it can be pretty expensive to buy. Also, it can irritate the skin, so wearing gloves is recommended before starting the process.

Tea tree oil’s anti-fungal properties help eliminate the mold in shower grout. It is the greatest and safest substitute for powerful chemical cleaning agents that can also deter pests like ants and spiders. You can apply tea tree oil by combining it with water. Here is a step-by-step tutorial on accomplishing it. 


  1. Mix one teaspoon of tea tree oil in a cup of water and pour it into the spray bottle.
  2. Shake it well before spraying.
  3. Spray the solution directly on the mold-affected grout.
  4. Let it sit for an hour.
  5. Utilize a clean rag and wipe the excess residue.
  6. Repeat the process if necessary. 

Use Lemon

Lemon To Get Rid of Mold in Shower Grout

Another natural mold killer is the citrus lemon. The high acid concentration can eliminate the mold from shower grouts. It is a good disinfectant that can make the shower area mold-free and leave a good aroma around the room. To increase the effectiveness of this method, you will need at least 3-5 lemons in hand. Follow the instructions to eliminate the mold from the shower grout.


  1. Squeeze 3-5 lemons in a container.
  2. Pour the citrus solution directly onto the affected area.
  3. Let it sit for 5 minutes.
  4. Wipe the area with a clean towel.
  5. You can repeat the process if there is still some mold remaining. 

Apply Distilled Vinegar

apply distilled vinegar

White distilled vinegar is another natural way to eliminate mold. But, it would be best if you took proper precautions before applying it. When used incorrectly, the vinegar’s acidic content can damage the shower’s tile grout. Therefore, testing the solution in a small corner before starting the cleaning process is suggested. Follow the steps below to use the vinegar on tile grouts correctly. It can have lasting damage to natural stones like marble in the shower if used incorrectly.


  1. Mix water and vinegar in a container in a 1:1 ratio.
  2. Dip a brush into the mixture and start scrubbing in the grout lines.
  3. Soak a towel in warm water and wipe the vinegar out of the tile. 
  4. Let the area air dry completely.
  5. Repeat the process if necessary.

Another way to use white vinegar to eliminate mold in shower grout is to make a paste by combining baking powder. 


  1. Make a paste from vinegar and baking soda.
  2. Apply the paste to the affected grout lines. 
  3. Let it sit for 25 minutes.
  4. Start scrubbing the area with a soft brush.
  5. Wipe the residue with a damp cloth.

Use Hydrogen Peroxide

Hydrogen Peroxide To Kill Mold off Shower Grout

Hydrogen peroxide is a chemical you can find in your house or purchase in hardware stores. Since it can harm some tiles, it is better to test it in an inconspicuous area before applying. Also, gear up with a protective mask, goggles, and gloves to be safe from its side effects. You can mix it with baking soda or use a concentrated solution on the shower grouts for effective results.

Steps for Applying 3% hydrogen peroxide on the tile grout:

  1. Use 3% concentrated hydrogen peroxide and spray it on the mold-affected grout.
  2. Let it sit for 10-15 minutes.
  3. Start scrubbing the grout with an old toothbrush or a squeegee.
  4. Wipe the area with a clean rag at last.

Another effective way to use hydrogen peroxide is to mix it with baking powder. You can see a good result by combining these two cleaning agents.


  1. Make a thin paste by combining ¼ hydrogen peroxide and ½ cup baking soda.
  2. Apply the paste to the affected area.
  3. Let it sit for half an hour.
  4. Scrub it using a soft-bristled brush.
  5. Wipe it clean using a clean damp towel. 

Preventing Mold From Growing Back in the Shower Grout

The shower room is the most humid area of the whole house. Lack of airflow inside the bathroom can trap the humidity and later attach to windows, faucets, floors, and ceiling and cause mold growth. It could provide the mold spores with the ideal environment to settle. Therefore, it is recommended to prevent mold growth by applying the following solutions.

Increase the Natural Ventilation

Sometimes simply opening the shower room doors and windows can change the bathroom’s humidity level. Make sure to leave the windows open after you are done showering. 

Invest in an Exhaust Fan in the Bathroom

The shower room is the most humid area in the house. The moisture directly affects the mold growth in the bathroom. Without proper ventilation, the humidity can increase in the bathroom. You can install an exhaust fan for this issue. It is effective to let the humid air inside the shower room leave and the fresh air inside. 

Install a Dehumidifier

Steam generated in the bathroom condenses the shower room, increasing the level of moisture in the shower room. It is important to let the steam ventilate before it seeps into the tile grout. You can always invest in a dehumidifier to prevent this from happening. Turn the correct settings of the humidifier after the shower and let it do its job. 

Wipe the Excess Water

A quick wipe with a dry cloth or squeegee from the sink, mirror, floor, and faucets every day after the shower can help prevent moisture damage on the tile grout. Do it quickly so it won’t have enough time to evaporate and attach to bathroom areas. 

Avoid Leaving Wet Cloth and Mops in the Shower Room

Leaving the wet cloth and mops for a long duration on the shower tiles can lead to mold growth. Therefore, it is suggested to dry the wet cloths and mops in the direct sunlight soon after the shower. 

Replace Shower Grout

It is recommended to replace the shower grout every six months to ensure mold growth. The cracked and damaged grout can be an easy entry for moisture, eventually leading to mold build-up. Therefore, call a specialist to install a new grout in case you need it.