How to Remove Mold From Grout


Photo by: Scott Seelos

How to Remove Mold From Grout

While unsightly and unfavorably aromatic, don’t worry, mold that is growing in your bathroom can be removed.  Grout in the spaces between bathroom tiles is a location quite susceptible to mold growth.  However, this mold can be cleaned, and your grout can be restored to very near its original condition.

Common household cleaners and cleaning tools should be adequate for removal of mold from grout.  Most households have cleaners such as bleach, vinegar, ammonia, and boric acid. Be sure to read the instructions on the cleaner you choose, and DO NOT mix these chemicals as dangerous, highly toxic gases can be produced from the chemical reactions of these materials.  Be sure to follow safety precautions regarding any cleaner, and use personal protective equipment and proper ventilation.  

Depending on how severe the mold growth has become, the simplest procedure might be the best.  For starters, make a paste of baking soda and water.  Apply the paste to the grout and allow it to sit for as long as you like.  Sometimes just a few minutes (at least ten) can be enough, or it may need to sit for an hour or more.  Scrub the area with a toothbrush and rinse.  You can apply vinegar to clean and help prevent recurrence.  

Bleach also works well, but some people are sensitive, and it should never be mixed with other cleaners.  For those who are sensitive but need a bleaching method, hydrogen peroxide works nicely.  For more information on cleaning mold from your home, click here.

Once the mold has been removed, and the grout has dried, you may want to apply a sealant to the grout.  It is important to allow the area to remain ventilated in order to keep the humidity levels low.  Humidity is the number one cause of mold growth.   


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