Homemade Grout Stain Remover

2 Materials
5 Minutes

Today we are sharing with you are wonderful two ingredient grout stain remover! Perfect for basic grout cleaning, but also stains, mold or mildew.

You can follow our instagram account for great tips and videos like this, including a little video of this solution.

icon We also share a little video about consistency which is saved on our highlights tab on Instagram (IG handle is alexis.roch) for your convenience. It is important to watch this information if you can because this is really just a simple, natural cleaner. It works great, and there shouldn't be any issue with it. I have used it for many years in the shower.

Homemade Grout Mold Stain Remover:

  • Hydrogen Peroxide (Regular 3%)
  • Baking Soda


  1. There are a few methods for creating the paste. First, add some baking soda into a bowl. Lightly spray peroxide onto the baking soda until a thick paste is formed. Almost like toothpaste (first picture in blog post shows texture).
  2. Apply the paste to the grout area needing attention, and let it sit a 5-10 minutes (or as long as you would like).
  3. With a tooth brush or small cleaning brush, scrub vigorously in small circular motions.
  4. Rinse

icon icon Do you have any questions about this solution, how to use it, or why we use it?? icon Just click this link to visit the blog post for detailed tips on the science and alternate methods!

Also, if you are worried about residue, just spray some rubbing alcohol on the solution after rinsing or use hot soap and water. There shouldn't be any issue with residue!

With the thick consistency, applying to grout is easy. I just rub it on like shown above!

Resources for this project:
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Alexis @ Chemistry Cachet
Want more details about this and other DIY projects? Check out my blog post!
Frequently asked questions
Have a question about this project?
3 of 10 questions
  • Kristi Smith Kristi Smith on Mar 30, 2022

    Is this ok to use with travertine marble or other natural stone tiles?

  • Lillian Lillian on Aug 27, 2022

    Will this formula clean glass shower doors with hard water and soap buildup?

  • Cheryl Jendraszewski Cheryl Jendraszewski on Oct 16, 2022

    How can I get rid of rust in the tub? Thanks

Join the conversation
4 of 28 comments
  • Susan Susan on Aug 30, 2022

    What a great grout cleaner!!!!! I tried it today and my grout is beautifully white!

    Thanks for sharing.🥰

  • It's me Faith It's me Faith on Oct 17, 2022

    Was wondering about using this on a color grout. I have dark brown.

    • I have used it on gray grout, and it was fine. It does require more rinsing to get rid of the baking soda. I will follow up with some soap and water when I do our darker grout. You can test a small area first to see how it does.