[header] How to protect bathroom grout [title] Dry your bathroom after every shower or cleaning. [step] Use a squeegee, towel or cloth to dry all tiles after they get wet. Make sure you have a bathroom fan or window that can suck the excess moisture out from the air. 
[substeps] If you do not do this, grout will absorb excess moisture, which will turn into mold and mildew. It will stain and breakdown the structure of the grout, causing it to crumble prematurely.