How to Clean Dark Grout That Has Turned White (Some Simple & Easy Steps)

Dark grout is a popular choice for bathroom and kitchen tiles. Because it doesn’t show dirt like lighter grouts, while they hide it better, dark grout still picks up dust and dirt and can also stain. How to clean dark grout that has turned white?

There are several cleaning products available at the hardware store. Read the labels to find out which products are best for your needs and follow the instructions on the labels. If you are unsure which product to use, the seller can help. 

You should not use peroxide alone on the dark grout, as this will cause defects and weaken the grout. Try some other ingredients, like vinegar or baking soda, with the mixture.

Remember that the grout is white because the floor increases the growth of salts or minerals from the penetrating material, and the structure is covered in white. Anyway, you can do this in several ways.

Although the most common explanation is that the figures start from the nearest pedestal, the harness can also turn white in heavy rain until the air is released and the floor is washed. Periodic cleaning is necessary, regardless of the color of the grout. With this in mind, it’s essential to know how to clean up a dark grout that has turned white to prevent discoloration.

How to Clean Dark Grout That Has Turned White


Dark grout is popularly used for grouting bathroom and kitchen tiles. As a result, it’s mainly to conceal dirt better. 

If they start to fade into a lighter colour, it looks odd. Therefore, you have a fix to save the day for you!

Making a solution of half vinegar with the water is also helpful for cleaning bathroom and kitchen tiles with dark grout. Fill a spray bottle with the solution and apply it directly to the grout.

How to Clean Dark Grout That Has Turned White
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Give it a few seconds to penetrate the dirt and wipe clean with a damp cloth. Repeat as necessary. There are several ways to clean the dark grout into white. Some of these are:

Using Baking Soda and Hydrogen Peroxide

It’s a vital part of this article as now I will describe how to clean dark grout that has turned white using hydrogen peroxide and baking soda.

Using baking soda and hydrogen peroxide to clean grout is an effective way to remove grout. Commonly used as a mild disinfectant, hydrogen peroxide is a powerful bleaching agent ideal for washing white and colourless grout. Baking soda is an ideal and robust mixture, as it cleans the grout without ruining it.

Step 1: Arrange all you need

Before starting the cleaning process, you have to arrange some ingredients to make your work done correctly. Here they are,

  • Hydrogen peroxide
  • Baking soda
  • Toothbrush
  • Clean cloth or any towel

These are all you need. Once you have collected all these things, you can follow the procedures.

Step 2: Moisten the working area and pour some baking soda

Moisten the grout area with a clean, damp towel, taking care not to get too wet. Then, sprinkle some baking soda on the grout. The baking soda will stick better to the grout.

Step 3: Clean the surface

After that, leave this baking soda on for a while. Meanwhile, soak an old toothbrush in hydrogen peroxide. After leaving the baking soda in the wet solution for 10 to 15 minutes, wash the surface with an old toothbrush dipped in hydrogen peroxide.

Step 4: Rinse the surface with clean water

 It is a relatively easy way to clean grout between floor tiles. So you don’t have to worry about dirty and mouldy grout anymore. These humble wipes are the perfect bathroom cleaning kit for removing grout stains.

Using Vinegar and Baking Soda

Vinegar can be another great ingredient to clean the grout. It is not only a cleanser but also a disinfectant. Following are some steps to clean your dark grout:

Step 1: Add baking soda into water

Pour the baking soda into the bowl. The amount depends on how much home cleaning grout you need for the tiles. 

Step 2: Add vinegar

Add some vinegar and stir until you get a thick enough mixture called a paste. Add more baking soda and vinegar if the paste is too thick. 

Step 3: Finish it off

Apply the paste in a liberal layer on the seam area to be cleaned. Leave on for 5-10 minutes. Then wash off with warm water.

Why does my clean dark grout turn white?

You have to wonder why the dark grout turns into white. I will tell you about it in this section. Let’s see what happens:


First, a rash is a typical reason for a dark grout to turn white. The oily solution will result in a white layer over the dark solution.

Relevant: How to Clean Dark Engineered Wood Floors

Discoloration may occur because moisture is trapped under the rug. In addition, outdoor grout can turn white from rain. Or, occasionally, from the water that washed the floor.

Polymer suspensions

Another reason may be the use of polymer-containing grout. Therefore, polymers will rise to the surface if you use a lot of water. It creates a white mist in the joint!

Cleaning solvents have not been cleaned properly

In many cases, the cleaner can be a curse. The remnants of the cleaning agent can bleach the grout. Therefore, it creates a detergent-like white residue that forms a coating on the grout. 


Why is my black grout white?

Grout that turns white may be affected by a rash. The underlying mortar or concrete migrates through the porous cement slurry and lime from the water. If the water in the shower pan is not draining correctly, this can be why the excess water is causing the rash. If the drain holes or the waterproof layer of the shower membrane do not drain properly, water may not drain.

How to remove salt from black grout?

Unfortunately, it’s not just the tile itself that needs to be cleaned, as salts can build up along the seams. So, you have to clean it too. To do this, you can make an equal portion of vinegar and baking soda to make a paste to clean the floor like linoleum. Then, take the paste to the defective area and leave it for a few minutes.

How to remove white spots from black tiles?

Salt and hidden metals in water can be abrasive. They can produce white spots on the grout. So eliminate them quickly before it scratches the tiles. You can remove it by cleaning the floor with 50: 50 water and vinegar.

Related: Cleaning Engineered Hardwood Floors with Vinegar and Water

Then spray the mixture to the grout or shower to eliminate black tile white spots. It removes the scars and reduces some damages to the grout.

Final Verdict

That’s all you can do when cleaning a dark grout. Also, remember that half vinegar solution with water is equally helpful for removing dark soles. Fill a shower bottle and apply it through a filter for several days, cleansing soil and liquid powder penetration.

Don’t forget to take safety measures when working with some chemicals. Wash your hand with a hand wash after the cleaning process. Also, please keep it away from your eye while working and from the children.

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