As porous material, grout acts like a sponge and soaks up everything: dirt, grease, mildew, soap scum, even hard water. “That’s why grout tends to look discolored long before the tiles do,” says ...

As porous material, grout acts like a sponge and soaks up everything: dirt, grease, mildew, soap scum, even hard water. “That’s why grout tends to look discolored long before the tiles do,” says ...

When it comes to the grout in our homes, whether it's in the bathroom or between the kitchen tiles, cleaningit is often a ...