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How to clean bathroom grout

These tips on cleaning grout in the bathroom will leave it looking fresh and pristine.

Friday 27th April 2018

Bathrooms are where we go for some much needed downtime. So don't be put off from going for a relaxing soak by grubby grout that has lost its shine. Follow these tips on how to clean grout with homemade recipes so your bathroom looks as good as new.

How to clean grout in the shower - Option 1

Vinegar, baking soda and ammonia


  • Mix seven cups of warm water, ½ a cup of baking soda, 1/3 of a cup of ammonia and ¼ of a cup of white vinegar. Mix all of the ingredients together until the baking soda is dissolved.
  • Pour the mixture into a spray bottle, which will make it easier to target the areas you want. Fill the spray bottle and give the solution a thorough shake.
  • To clean grout in the shower, start on a small area and spray the grout in an area about 1-2 square feet. Ensure the grout is fully damped. Give the mixture 3-5 minutes to work into the grout.
  • Time to start scrubbing. Using a hard bristled brush or an old toothbrush, and get to work on scrubbing away the ground-in dirt between your tiles. Apply firm pressure to get rid of the darker stains.
  • Use a damp cloth to wipe up the dirty liquid and wring out into a separate container. The last thing you want is for the dirt you have just worked so hard to clean to get back into the grout.
  • Once you have scrubbed and wiped away the dirty liquid you should go over the entire surface again with a damp clean cloth.
Rubber gloved hand cleaning bathroom grout on tiled wall
Red brush cleaning grout on white tiled wall

How to clean grout in the shower - Option 2

Hydrogen peroxide and baking soda. This is a solution for really tough stains.


  • Mix hydrogen peroxide and baking soda in a bowl to form a thick paste.
  • Spread the paste onto your grout using an old toothbrush to completely coat the area to be cleaned. Let it soak in for about 5 to 10 minutes.
  • Like the previous method, use a brush with firm bristles to scrub the grout. Apply more of the mixture letting it set again, if the grout is still dirty.
  • Use a damp cloth or mop to wipe off the remaining paste. Finish the job by going over the entire tiled area with spray cleaner and wipe down with a clean cloth or mop.

Whichever method or mixture you chose, it is important to clean the area thoroughly and get rid of any debris and residue before you target the grout.

Sealing grout lines
Cleaning grout in the bathroom is hard work. So once you’ve got it all clean, it’s a good idea to seal it using grout sealer which will create a protective surface to help prevent staining and help make the grout easier to clean in future. Tiles must be clean and completely dry and the sealer needs to cure fully before you get the area wet again. It’s important to follow the instructions carefully to ensure the sealer is effective. 

Wall panels
Having a tiled bathroom (or cleaning grout!) isn’t for everyone though, and if that’s the case a hassle-free alternative are wall panels. They’re easy to fit, low maintenance and affordable. They can be cut to size to fit any area of your bathroom instead of tiles. Mira Showers have a range that features BioCote® technology that reduces bacteria and mould growth by up to 99.9%!

> Find out even more bathroom cleaning tips in our guide to deep cleaning your bathroom.

> Do you have any more tips for how to clean grout? Share them with us on Facebook or Twitter.

Mira Showers white wall panels in shower