How to Clean Grout

Find out how to clean grout. Get tips on soaking a paper towel in a solution of 10 percent bleach to 90 percent water. Stick the saturated paper towel onto the tile and grout and let it stay there for up to 30 minutes. Then remove it and use a nail brush or old toothbrush to give it a little abrasion and rinse it off. After it dries really, really well, put a grout sealer on it.