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How To Clean Grout


How To Clean Grout

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How To Clean Grout

How To Clean Grout

How to Clean Grout: A Comprehensive Guide

Grout, the material that fills the joints between tiles, plays a crucial role in the overall aesthetics and functionality of your tiled surfaces. However, it’s also prone to dirt, stains, and discoloration over time. Keeping grout clean and well-maintained is essential for preserving the beauty of your tiles and preventing potential issues. Here’s a detailed guide to help you effectively clean grout and restore its pristine appearance.

1. Identify the Type of Grout

Before starting the cleaning process, it’s important to determine the type of grout you have. Different types of grout require specific cleaning techniques.

  • Cementitious grout: The most common type of grout, made from cement and sand, is porous and prone to absorbing stains.
  • Epoxy grout: A more durable and non-porous grout, resistant to stains and chemicals.
  • Furan resin grout: Designed for industrial applications, furan resin grout is highly resistant to chemicals and acids.

2. Gather Your Cleaning Supplies

To clean grout effectively, you’ll need the following supplies:

  • Grout cleaner (commercial or homemade)
  • Bucket or spray bottle
  • Soft-bristled brush or sponge
  • Rags or microfiber cloths
  • Gloves (optional)
  • Toothbrush or small brush (for hard-to-reach areas)

3. Prepare Your Grout Cleaner

There are numerous grout cleaning products available in the market. However, if you prefer a more natural approach, you can create your own homemade cleaning solutions.

  • Vinegar solution: Mix equal parts white vinegar and water in a spray bottle.
  • Baking soda paste: Create a thick paste by mixing baking soda with a small amount of water.

4. Apply the Grout Cleaner

  • Cementitious grout: Apply the cleaning solution generously to the grout using a brush or sponge. Let it sit for 10-15 minutes to penetrate the porous surface.
  • Epoxy grout: Spray the cleaning solution directly onto the grout. Allow it to sit for 5-10 minutes, as epoxy grout is less porous.
  • Furan resin grout: Avoid using acidic cleaners on furan resin grout. Instead, use a mild dish soap solution and clean as directed below.

5. Scrub the Grout

  • Cementitious grout: Using a soft-bristled brush or sponge, gently scrub the grout in circular motions. Avoid using excessive force, as this can damage the grout.
  • Epoxy and furan resin grout: Brush the grout lightly with a soft sponge or cloth. Rinse with clean water after scrubbing.

6. Rinse and Dry

After scrubbing, thoroughly rinse the grout with clean water. Use a sponge or rag to wipe away any excess water and allow the grout to dry completely.

7. Remove Stains and Stubborn Dirt

If you encounter stubborn stains or discoloration, you may need to use stronger cleaning methods.

  • Baking soda paste: Apply the paste to the stained grout and let it sit for 30 minutes or overnight. Scrub with a toothbrush and rinse.
  • Hydrogen peroxide (for white grout only): Apply a small amount of hydrogen peroxide to the stain and let it sit for 10-15 minutes. Rinse and repeat as necessary.
  • Commercial stain removers: Follow the manufacturer’s instructions when using commercial stain removers specifically designed for grout.

8. Preventative Maintenance

To prevent grout from getting dirty and stained again, consider the following tips:

  • Seal the grout after cleaning to create a protective barrier.
  • Mop the tiled surface regularly to remove surface dirt.
  • Avoid using harsh cleaners or abrasive sponges.
  • Clean spills and stains promptly to prevent them from setting in.


Q: What is the best grout cleaner to use?

A: The best grout cleaner depends on the type of grout. For cementitious grout, a vinegar solution or baking soda paste is effective. For epoxy and furan resin grout, a mild dish soap solution is recommended.

Q: How often should I clean grout?

A: Grout should be cleaned as needed, but regular maintenance every few months will help prevent dirt and stains from accumulating.

Q: Can I use bleach to clean grout?

A: Bleach can be used on white cementitious grout to remove stains, but it should be diluted with water (1 part bleach to 10 parts water). Avoid using bleach on colored or epoxy grout.

Q: What if my grout is severely discolored or damaged?

A: If your grout is severely discolored or damaged, you may need to re-grout the tiles. This is a more involved process that requires professional expertise.

Q: How can I keep my grout looking white?

A: To keep white grout looking its best, clean it regularly with a vinegar solution or baking soda paste. You can also apply a grout sealant to create a protective barrier and prevent staining.


Cleaning grout effectively requires the right tools and techniques. By following the steps outlined in this guide, you can keep your grout looking clean, bright, and protected for years to come. Remember to identify the type of grout you have, prepare the appropriate cleaner, and scrub gently to avoid damage. Regular maintenance and stain removal practices will help prolong the life of your grout and enhance the overall appearance of your tiled surfaces.