Clean tile grout is a secret behind a neat tile floor, walls and backsplashes. While tiles resist stains and dirt, since grout is porous, it can easily absorb dirt and get stained. Grout is usually stained by dirt and grime at an entry. Generally, in the kitchen, spills are the most causes of dirty grout while in the bathroom, the soap, mildew, and mould usually give a dirty appearance to it. But don't worry, if hiring professional cleaning services is not an option, we have a sure-fire w..