How to Clean Mold on Shower Grout





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Cleaning mold on shower grout can be a daunting task, but with a few simple steps, you’ll have your shower looking fresh and mold-free in no time.

First, start by mixing equal parts of bleach and water in a spray bottle. Once you have your solution ready, generously spray it onto the affected areas of grout. Let the solution sit for about 15 minutes, allowing it to penetrate the mold and break it down. Next, grab an old toothbrush or grout brush and scrub the grout vigorously, applying some elbow grease to remove any stubborn mold stains.

Rinse the grout thoroughly with warm water, making sure all the bleach residue is washed away. For extra protection against future mold growth, consider applying a mold-resistant sealer over the cleaned grout once it’s fully dry. Finally, to prevent mold from recurring, ensure proper ventilation in your bathroom by using an exhaust fan or opening a window during and after showers.

Additionally, try to keep your shower area dry and free from excess moisture by using a squeegee or towel to wipe down the tiles and grout after each use. By following these simple steps, you can bid farewell to mold and enjoy a cleaner, healthier showering experience.


  • Clean the affected grout with a mixture of bleach and water.
  • Scrub the moldy grout using a stiff brush or toothbrush.
  • Rinse the area thoroughly with water.
  • Dry the grout completely to prevent future mold growth.
  • Apply a grout sealer to protect the cleaned grout.


  • Do not use colored grout cleaners or solutions that contain vinegar, ammonia, or acidic ingredients.
  • Avoid using abrasive materials or scrubbing tools that may damage the grout.
  • Don’t forget to wear protective gloves and a mask when dealing with moldy grout.
  • Do not ignore mold growth on grout, as it can spread and cause further damage.
  • Avoid using excessive water or liquid on grout, as it can lead to water damage and weaken the structure.

Step 1

Use a mold and mildew remover spray to treat the shower grout. Spray the affected areas and let it sit for a few minutes.

Step 2

Scrub the grout lines using a stiff brush or an old toothbrush soaked in the mold remover solution. Make sure to scrub thoroughly and rinse off the residue.

Step 3

Make a paste by mixing baking soda and water. Apply the paste to the moldy grout and let it sit for 10-15 minutes. Scrub the grout again to remove any remaining mold.

Step 4

Rinse the grout thoroughly with warm water to remove any residue. Wipe the grout dry with a clean towel or cloth.

Step 5

Apply a mold-resistant grout sealer to protect the grout from future mold growth. Follow the manufacturer’s instructions for application and drying time.

Final thoughts 💭

To clean mold on shower grout effectively, it is important to regularly maintain cleanliness and ventilation in the bathroom. Mold thrives in warm and moist environments, so reducing the humidity and ensuring proper airflow can help prevent mold growth. Additionally, using a mold-killing cleaner and a brush can effectively remove mold from shower grout. It is essential to follow the product instructions and wear protective gear while cleaning to ensure safety. Overall, adopting regular cleaning practices and addressing mold promptly can help keep your shower grout mold-free and maintain a clean and healthy bathroom environment.

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