How to Clean Mold in Shower Grout Naturally? Updated Info


By Mike Chua | Last Updated: January 01 2020

How to clean mold in shower grout naturally

Grout is the one thing that can make anyone cringe in the bathroom. It is a well-accepted fact that bathrooms need to be the cleanest place in the house. Arguably, this place is also one of the places most prone to bacterial growth.

Grout is the material that is used to fill in the gaps between the tiles. Contrary to the tiles, this material is porous. This makes it extra vulnerable to molds. You can notice that as black linings and also sometimes as white over-growths. This looks really dirty.

Also, this makes the bathroom a birthplace of many diseases.  The hot and humid atmosphere of the bathroom, especially after a hot shower, makes it the perfect place for mold’s growth.

The Top Tips to Help You Clean Your Mold in Shower Grout

Here, we will be giving some of the household hacks to keep your bathroom mold-free:-

1. Use baking soda:

The most effective method is to use baking soda over the grout. Apply baking soda generously over the affected area. Let it be there for as long as possible. Now, using a scrubbing brush, slowly remove the mold. Wash off with hot water. If the grout is pretty hard, use two parts of baking soda with one part of water. Then repeat the above-mentioned process.

2. Vinegar-water solution:

In a spray bottle, mix vinegar and water in 50:50 ratio. Spray the solution over the grout and let it stand for about 5 minutes. Using a soft brush or even a toothbrush, remove the grout. Always pay attention to using a soft brush. Never use a metallic brush. It will damage the tiles or marbles.

3. Hydrogen Peroxide-baking soda mix:

When you have light colored tiles or marbles, using vinegar can leave stains. In such cases, you should use two parts of baking soda with one part of peroxide. Leave it for some time. Then brush off using a soft brush.

4. Sandpaper scrub:

You can also use a sandpaper for removing the grout. Simply rub it back and forth and rinse off with warm water.

5. Borax-washing soda-baking soda mix:

You can also prepare a grout removal liquid by using 2 tbsp of washing soda and borax each with a half cup of baking soda. Now mix 3 tbsp of liquid soap in this mixture. Apply white vinegar on the surface before applying this mixture. Let it sit for about half an hour. Use a hard brush but never a metallic brush. Rinse off with warm water

Why do these formula work?

You must be wondering why most of the above-mentioned methods use baking soda or vinegar or hydrogen peroxide. The fact is that the baking soda is an abrasive which efficiently removes even the dirt particles from the grout. This makes the gaps look clean. Now, the hydrogen peroxide is a bleach. Most tiles and marbles are white in color which become stained due to poor water quality and also dirt.

So, upon using hydrogen peroxide, the tiles get bleached and regain their original color. Now, the vinegar is a light acidic compound. It is usually used in combination with which, makes it even lighter. It removes the greasy layer from the tiles. So, now you know why these three compounds should be a must-have for your cleaning chores.

Must pay attention points:

Apart from using the above formulations, you need to pay attention to a few basics too. that way your cleaning regime will be efficient and less time-consuming.

Always soak the surface for about an hour: This allows grout to absorb the cleaning substance and it becomes easier to brush off the mold. You can use the analogy of scrubbing off some tough stains from clothes. When you soak clothes, it becomes a lot easier to brush off the stain. Similarly, the tiles become easier to clean when soaked for some time in the cleaning mixture.

Never use a metallic brush: You should never use a metallic brush, not even the steel wool. Tiles and marbles have a certain level softness. When you scrub with a metallic brush, you scrounge off the top layer.  Also, it can bring off the grout making tiles vulnerable to getting damaged.

Use warm water to wash off the surface: When mobbing off the cleaning formula, use warm water. This will help in two ways. First, warm water will help in washing off the greasy layer. Second, it will react with the baking soda/hydrogen peroxide/washing soda to act as an air cleaner too. Additionally, the mold dies on coming in contact with the warm water.

Use natural oil: While using all the cleaning formula, use natural oil in it. It will help in keeping the bathroom smell good.

Maintaining a grout-free bathroom

While you may spend a considerable time and efforts in scrubbing off the grout, it is equally important to keep the bathroom in that state. You can follow these steps for maintaining a grout-free bathroom:

  • A. Keep your bathroom well ventilated. Open the windows or ventilators after a shower pan to make the bathroom humidity-free. If you don’t have any window, you can install a small fan inside the bathroom. Leave it running to keep the bathroom dry.
  • B. Keep any of the cleaning solution and a good scrubbing cloth hand inside the bathroom. After taking a shower, spray it over the tiles and wipe clean with the cloth. This will prevent re-growth of molds.
  • C. Use a grout sealer after cleaning the surface. It will help in preventing the mold from coming back for some time.


Mold growth isn’t great for anybody’s health in the house. Cleaning your bathroom regularly is a good idea. While the task could seem tad complex, focusing on the basics would help you get rid of mold before you know it. Alternatively, hiring mold removal experts can work great too.

About the Author Mike Chua

Vircet is your one-stop modern products website that offers you detailed reviews based on efficiency, capacity, design, and performance. We help you make better decisions.

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