How to Get Mold Out of Grout

A gloved hand cleaning a shower wall with a sponge.
What You'll Need
Rubber Gloves
Old clothes
Scrub brush
Old tooth brush
Paper towels
Spray bottle
Small container
Lemon juice

Mold and mildew tend to develop in areas where there is excess moisture. Over time the moisture can develop into a bacterial growth that is not only unhygienic and potentially dangerous, but difficult to remove. Mold that has settled into bathroom grout can be particularly hard to clean. By following some simple steps using typical household items, you can kill the entire growth and eliminate the chances of it regenerating.

Step 1

Put on your rubber gloves to protect your skin. The grout cleaning mixture can potentially discolor your clothing if it touches the fabric so it is also best to wear an old set of clothes while you are working.

Step 2

Combine 1 cup of bleach and 3 cups of warm water in a bucket. Remove the spray top of your bottle. Place your funnel into the top of the bottle and carefully pour the bleach mixture from the bucket into the container. Attach the spray top to the bottle and ensure that the top is tightly secured. Use a permanent marker to label your spray bottle “Bleach Mixture.”

Step 3

Spray the affected areas with the mixture being careful to keep the liquid away from your skin. Use your brush to vigorously scrub at the mold and mildew. For small areas, use your tooth brush to remove the mold and mildew. Rinse the area with cool, clear water. Repeat the spraying and scrubbing process if necessary. Be sure to store the bleach mixture spray bottle in a safe place for further use. Keep it up on a shelf and out of the reach of children.

Step 4

Fill a small bowl with vinegar. Lay three or four sheets of paper towel into the vinegar to soak them. Place the paper towels over any grout areas that require extra help to clean. Press the towels firmly until they are fully in contact with the grout. Leave the paper towels in place for about eight hours. If the paper begins to dry out, apply more vinegar to keep them saturated. Remove the paper towels from the grout and use your brush to scrub any remaining mold or mildew. Rinse the area with cool, clear water.

Step 5

You can prevent further growth of mold and mildew in your bathroom grout by applying lemon juice to the surfaces where it grows after showers and baths. After bathing, dry the shower area with a towel to remove excess water and moisture. Open the shower door or curtain to allow for air circulation in the room. Apply a liberal amount of lemon juice to your sponge. Rub the sponge over the grout and allow the lemon juice to sit for about fifteen minutes. Finally, rinse the area with cool, clear water.