Grout Stain Removal

  • 1 hours
  • Beginner
  • 15
What You'll Need
Knife
Mild detergent
Warm water
Bristle brush
Clean cloth or rag
Mop
Bleach
Baking soda
Ammonia
Commercial bleach cleaner
Grout dye
Lighter fluid, mineral spirit, or turpentine
What You'll Need
Knife
Mild detergent
Warm water
Bristle brush
Clean cloth or rag
Mop
Bleach
Baking soda
Ammonia
Commercial bleach cleaner
Grout dye
Lighter fluid, mineral spirit, or turpentine

Even a single grout stain can really make a difference to your well-polished kitchen sink and bathroom floor. Grout is made of mortar combined with water, cement, and sand. It dries out into a rubbery, elastic substance that easily collects dirt. Mildew and bacteria may grow and thrive if left unattended.

There are several ways on how to remove grout stains.

Basic Cleaning

Basic maintenance cleaning can be done every other month. It will also depend on how often your grout gets stained.

Remove all noticeable debris around the area.

Use a dull knife to remove anything that is stuck on the surface. Be careful not to chip the grout.

Prepare a solution of 1 part mild detergent mixed with 4 parts of warm water.

Wet the grout stain with the prepared solution.

Scrub the grout and tile surface with a bristle brush.

Use elbow grease on the grout stain itself.

After scrubbing, rinse the area with a terry cloth or mop.

Cleansing Solutions

You can also make your own cleaning solution that can be specifically used for grout stains. As a safety warning before you mix your own solution, you should always be careful and check first if mixing certain products together might be dangerous to cause armful and dangerous chemical reactions. Mixing ammonia and bleach, for example, will produce chlorine gas which is deadly. So following the instructions for mixing, if your grout is white, use 1 cup bleach mixed with 5 cups of warm water. Three more cleaning solutions you can use are:

  • Half a cup of baking soda mixed with 5 cups of warm water
  • 3 parts of ammonia combined with 5 cups of warm water
  • ¼ cup white vinegar mixed with 5 cups of warm water

When choosing a bleach cleaner, choose the non-abrasive type and use it only on non-colored tiles. Always be sure to perform a colorfastness test. Keep the ventilation open and always rinse thoroughly when you're done.

Color stains such as hair dye, ink, and crayons can be removed using lighter fluid, mineral spirits, or turpentine.

Using Grout Dyes

Experts also suggest using grout dyes to hide grout dirt and mildew. The grout should be squeaky clean before applying dye.

Preventive Measures

One effective measure in preventing grout stains is grout sealing. Unsealed grout easily attracts slime, mold, mildew, dirt, and grime. Many grout sealers are expensive but they are a worthy investment that will later save you the hassle of removing stains and losing money and time.

Grout Replacement

After cleaning your tile grout, you may find mold and mildew growing back again after a week or two. It may be best to replace the existing grout, especially when you see a lot of missing cracks and pieces.

Remove the old stuff first, several grout remover kits can be found in hardware stores. Mixing your new grout material with latex additive will make it more waterproof and long-lasting.

Allow the new material to set for about 3 minutes and add silicone caulk to the first layer of tiles as a finishing touch. Do not forget to use a grout sealant to allow easier cleaning in the future.