Why is cleaning grout so hard?

Author: Alejandrin Kilback  |  Last update: Thursday, May 21, 2026

It sucks in dirt, making it very difficult to clean and even harder to maintain. Once your grout gets dirty, the mess isn't just topical — it has actually sunk down through the surface.

How do you clean severely dirty grout?

  • 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.
  • Like the previous method, use a brush with firm bristles to scrub the grout.
  • Use a damp cloth or mop to wipe off the remaining paste.

What do professionals use to clean grout?

Some professionals swear by a simple mixture of baking soda and peroxide to clean grout. Hydrogen peroxide is an acid, and baking soda is a base compound. Mixing the two together creates a reaction that can penetrate the grout lines and free dirt and debris.

How do you make grout easier to clean?

  • 1. Sprinkle baking soda generously over the grout lines.
  • 2. Spray white vinegar over the baking soda. It will fizz and bubble, which helps lift dirt.
  • 3. Allow it to sit for about 10-15 minutes.
  • 4. Wipe the area with a mop or damp cloth. Rinse with water afterward.

Does anything really clean grout?

Here's a few DIY grout cleaners you can try: Make a spreadable paste with 3/4 cup baking soda with 1/4 cup hydrogen peroxide and 1 tablespoon of mild dish soap. Add more baking soda or peroxide if the mixture is too runny or thick.

How to Clean Dirty Grout with Homemade Cleaner | Ask This Old House

What should you not use to clean grout?

Chemical cleaners, such as, Tilex, Soft Scrub, Scrubbing Bubbles, or ammonia products will nearly always result in your tile surfaces' grout becoming very discolored.

Why is grout hard to clean?

Contaminants or dirt contained in those liquids can adhere to the grout. Once absorbed they are difficult to remove. Mopping or other regular cleaning methods aren't effective at removing stains and may make problems worse, since rewetting can activate bacteria and cause odors.

Does hydrogen peroxide damage grout?

Yes, hydrogen peroxide is a natural neutral cleaner that is safe to use on grout. Hydrogen peroxide and baking soda produce oxygenated bleach, which is highly effective for cleaning grout.

Does the pink stuff clean grout?

How it works: Touted as a miracle cleaning paste, The Pink Stuff is easy to apply to grout using a soft cloth or sponge. Simply rub and scrub, and then rinse with hot water. As a mildly abrasive cleaner, the paste has a little grit to it, which helps scrub away dirt and debris from grout and surfaces.

Can OxiClean be used to clean grout?

If you're trying to clean grimy grout between your bathroom shower or floor tiles, then OxiClean™ bathroom cleaners are here to help! They get rid of grout stains on vertical and floor tiles for a refreshed bathroom.

Is Dawn dish soap good for cleaning grout?

If you're a die-hard DIYer, using Dawn dish soap alone can be a safer option for mild cleaning. Dilute a small amount of Dawn in warm water, scrub the grout with a soft brush, and rinse thoroughly.

How do you remove ingrained dirt from grout?

Mix equal parts of distilled white vinegar and warm water in a spray bottle. Spray the solution on the grout, working on one small area at a time. Let the mixture sit for 5 minutes. Thereafter, scrub the area with a brush or a stiff toothbrush.

Do grout pens work?

This really works! The grouting around the tiles in our kitchen and bathroom was looking very tried with several black damp spots. The grout pen covered it all in one coat and was very simple and quick to use. We added an extra coat on the very stained sections and now it all looks like fresh grouting.

Is goo gone safe on grout?

It works on the tile and the grout, effectively cleaning everything from hard water stains to mold and mildew stains to soap scum.

What is the best grout cleaner on the market?

Our Top Picks
  • Best Overall: Black Diamond Ultimate Grout Cleaner Spray for Tile with Brush at Amazon $37. ...
  • Best Budget: SALE. ...
  • Best for Showers: Scrubbing Bubbles Grime Fighter Spray at Amazon $8. ...
  • Best for Mold and Mildew: Home Armor Instant Mold and Mildew Stain Remover at Amazon $17. ...
  • Best Scent: ...
  • Best Brush:

Does vinegar ruin grout?

Grout is porous and usually sealed to resist stains. However, acid can degrade these silicone-based sealants, causing them to break down and wash away. Contrary to popular belief, this can happen with just one application of vinegar. Once the sealant is removed, dirt can penetrate the grout, leading to discoloration.

Why do builders not seal grout?

The best answer, in a word, is money. It costs more time and material to seal grout and there is little or no perceived benefit (until, of course, the grout gets stained or starts to crack). A superior product would cost more to purchase and install, again for no perceived benefit over the less costly unsealed grout.

How do you clean grout without scrubbing it?

Household bleach can make quick work of cleaning and sterilizing your grouting, with zero scrubbing required. Just be aware that bleach is a harsh chemical, so don't use it too often and keep it off your skin. If your grouting is incredibly dirty, it can be a great solution to get it back to normal quickly.

Is 409 a good grout cleaner?

On stains that dishwashing liquid will not remove, more powerful cleaners like Formula 409, Fantastik or Greased Lightning can be used, he said.

Is OxiClean good for cleaning grout?

Getting in between the tiles is hard but OxiClean™ can make keeping your grout sparkling white easy. Always refer to packaging for directions. MIX Fill to line 4 per gallon of water. For some surfaces, like grout, a more concentrated solution/paste may be needed.

Can you mix baking soda and hydrogen peroxide?

The two products can be safely combined to form a paste or used separately to whiten laundry, remove odors, disinfect surfaces, and much more. Never mix and store baking soda and hydrogen peroxide in a closed container. Mix them when you are ready to do some cleaning for the best results.

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