Instead of a scrub brush, you can try a closed-loop microfiber cloth. If so, wear gloves to protect your hands from the friction.
Alternately, make a paste from two parts baking soda to one part hydrogen peroxide. Let the paste sit on the grout for several minutes before scrubbing it and rinsing it clean.
Chlorine bleach is an eye and skin irritant. The fumes can affect the respiratory tract. Adequate protection and ventilation are essential. [7] X Research source
If your grout is colored, using bleach may cause it to fade, especially if used regularly. You can repeat this method with a slightly higher concentration of bleach (for example, half bleach, half water) if the 3-to-1 ratio doesn’t work. Never attempt to mix other chemicals with diluted bleach. For example, ammonia – found in many cleaning agents – emits toxic fumes when mixed with bleach.
Bleach can lighten mold so that it isn’t visible. Scrubbing is needed to reach into grout’s pores and remove organic growth. [11] X Research source
Letting bleach sit for more than a few minutes can cause staining, streaking, or even breakage to tile.
Vinegar is acid-based, so make sure to do a small test area first to make sure the solution doesn’t affect your surrounding tile. Optionally, apply a paste of baking soda and water to the grout before dousing it with the vinegar solution. The combination will bubble up. Then scrub and rinse. [14] X Expert Source Chris WillattHouse Cleaning Professional Expert Interview. 1 July 2019.
Try repeating this several times. Baking soda is abrasive, so keep it off the tile as much as possible.
For example, steam cleaners are not recommended for ceramic tile. [18] X Trustworthy Source US National Park Service Agency responsible for the maintenance and promotion of national parks and monuments Go to source
If you think the mold may have gotten underneath tiling or otherwise penetrated the structure of the room, you may want to renovate and re-tile the area.
For example, turn on your vent fan before a morning shower, and keep it running until you leave for the day. Even when the mirror is no longer foggy, there can still be moisture in the air. Mold and mildew thrive where it’s warm, airless and damp.
Using a squeegee after showering will cut down on surface buildup.
You should perform this on a small test area first to make sure there is no negative effect.
For example, choose polyester or vinyl for items like bathmats and curtains.
If your grout is in a bathroom, clean soap scum weekly.
