Safe steps for spotless grout.

Grout can get pretty gross. Most of the time, the filling between tiles in kitchens and bathrooms are a mixture of sand, cement, and water. That means it’s porous, so dirt and grime get ground in and ...

Q. My shower stall was tiled three years ago. Is it too late to seal the grout? Also, one grout joint in a corner has cracked, from the floor to the ceiling. How can I fix it so it won’t crack again?

Q: The grout on my 2-year-old bathroom tile is giving off a white, powdery, film-like substance. I let the shower dry for a number of days, then used sealant on the grout, but the problem persists.