Grout Cleaning: A Complete Guide

Grout cleaning can be one of the most challenging tasks, even for a professional. These stains are infamous for being stubborn to remove. Grout, being a porous material between tiles, absorbs any and every stain, causing discolouration and mould build-up. This is why professional cleaners are regularly called in to clean the grouts. If you are new to grout cleaning, this article will cover different ways of grout cleaning. 

Grout cleaning with equipment

One of the most common ways professional grout cleaners use is by using the grout cleaner machine. These machines come with separate tanks for cleaning solutions and the recovered dirt debris. With an adjustable pump pressure and multi-stage vacuum motors, the grout cleaning machine offers complete and versatile cleaning of medium to large surfaces. Since most such equipment comes with an auto-fill feature, you don’t have to stop cleaning to refill the machine, as everything is automated.

8 ways to clean grouts without machines

If you have just started out and don’t have the budget to buy a cleaner machine, here are 8 ways to clean the grouts effectively. These methods are listed according to the intensity of the stains.

1. Warm water and brush

Warm water is effective in cleaning milder grout stains. Simply spray some warm water and gently brush against the stain in circular motions. Let it dry, and then rinse the tiles after a while.

2. Vinegar and warm water

When dealing with heavier dirt and mild stains, vinegar is a great option. In a spray bottle, mix vinegar and warm water in equal amounts. Spray the solution on the grout; let it stay for five minutes before scrubbing with a stiff brush.

3. Baking soda paste and vinegar

For stronger stains and cleaning, apply a baking soda and water paste on the grout lines. Then, spray a half-and-half solution of vinegar and water on the paste; you will find the mixture foaming. Scrub with brush and rinse with plain water once the mixture stops fuming.

4. Hydrogen Peroxide

Hydrogen peroxide is a great option for moderate stains. You can apply this chemical directly to the grout or make a paste of baking soda and hydrogen peroxide to apply to the grout.

5. Oxygen bleach

With grimier grouts, oxygen bleach is an effective method. Follow the manufacturer’s instructions to apply the bleach and let it sit for 10-15 minutes before rinsing with clean water. Always ensure the area is well-ventilated before you use this method.

6. Commercial cleaning solution

Commercial cleaners are highly effective in removing mould and mildew stains, restoring the bright white colour of the grout. You will find cleaners of two types: spray and wipe (doesn’t require scrubbing) and scour with a brush (effective against heavy soil).

7. Chlorine bleach

Chlorine bleach is very effective against tough grout stains. However, it is not recommended for regular use because caustic cleaners like these can result in faster grout erosion. Before you use them, make sure to remove and clean all the attempts from above to avoid toxic side effects.

8. Steam cleaning

When you have the worst of grout stains, ones that haven’t been cleaned for a long time, steam cleaning has your back. Do some research and find the best steam mops, which can help you get rid of tough grout stains.


Cleaning the grouts can be challenging. However, with the right equipment and cleaning methods, you can easily clean the grouts without much hassle. That said, before you try any method, do a test drive in a small place to check if there is any adverse effect of the cleaning solution.

Using a proper carpet cleaning machine helps to remove all of that grime that gets embedded deep in the fibers, causing weird colors and smells.

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