How to Clean Bathroom Floor Tile Grout

How to Clean Bathroom Floor Tile Grout. No matter how clean you keep your bathroom, the tile grout is an area that can begin to look dirty. Once it does, it can be almost impossible to clean. You mop and mop, but it still looks discolored. Cleaning grout is not that difficult provided you are willing to use a little elbow grease and experiment until you find the right cleaner.

When the grout is dirty, the entire floor looks bad.

Things Needed

  • Grout brush or plastic stiff scrub brush
  • Mop
  • Bucket
  • Rubber gloves
  • Rag
  • Eye protection (optional)

How to Clean Tile Grout

Step 1

Clear the area by removing any rugs and other items that are on the floor.

Step 2

Sweep and mop the entire floor.

Step 3

Ventilate the room as much as you can by keeping the door open and opening windows.

Step 4

Depending on the cleaners you are using, you will probably want to wear gloves and eye protection.

Step 5

Test the cleaner on a small area of grout that is not generally visible before using on your floor to ensure that it will not discolor your grout.

Step 6

Start in the farthest corner of your bathroom floor. Apply the cleaner to a small section of floor allow to set. See Section 2 for different types of cleaners and setting times. Only use one cleanser at a time--do not mix them. For easier application, consider using a paintbrush, spray bottle or turkey baster to apply the liquid directly to the grout.

Step 7

Scrub the tile grout with the scrub brush using a small circular motion. It is best to use a brush specifically for tile versus an old toothbrush, which is too soft. Do not use metal brushes because you could damage the grout or the tile.

Step 8

Wipe away the cleanser with a rag.

Step 9

Rinse the floor by mopping with clean water.

Step 10

If any stains remain after cleaning, try removing them by rubbing them with an eraser or lightly with sandpaper.

Types of Cleansers for Cleaning Tile Grout

Step 1

Use a mixture of 3/4 cup bleach and 1 gallon of water. Chlorine bleach can remove color from some grouts, so use with care. Allow to set for about 10 minutes.

Step 2

Use vinegar at full strength. Allow to set for about 10 minutes or longer

Step 3

Use an oxygen bleach powder such as OxiClean, following the directions on the package. Allow to set for 5-to-60 minutes.

Step 4

Apply hydrogen peroxide by either spraying or sponging it on. You can use it at full strength or by mixing 1/2 cup with 1 cup of water. Allow it to set for 10 minutes before wiping off. For tougher stains, try mixing a paste using hydrogen peroxide and baking soda.

Step 5

Sprinkle baking soda over the grout or apply as a paste made using 3 parts baking soda and 1 part water. Let set for a few minutes before scrubbing. Baking soda may also be used in combination with hydrogen peroxide or vinegar.

Step 6

Use a commercial tile grout cleaner according to directions on the label.


  • Never mix cleansers unless directed. Bleach may lighten colored grout.