Yes this mixture of baking soda and peroxide will clean your tile and grout with good results, but would you want to go through that much work? I am a professional tile and grout cleaning in Tampa FL and I can tell you that there are several good home remedies for cleaning your tile and grout on your own. All of those home remedies require you to get on your hands and knees and scrub the grout like you see in the video. I have several customers who have cleaned their own tile and grout and spent a couple of days on their knees scrubbing the tile.
As a professional tile cleaner I would have to say this seems like one of the most laborious jobs around your home. The good news is that you don't have to clean your tile and grout this way. Chem-Dry of Tampa FL offers a full tile cleaning service. We scrub your tile and grout with a professional grade cleaner and then we we pressure wash it and vacuum away all the dirt. check out our tile cleaning video on youtube. You can see can see and here the power of high pressure cleaning for your tile floor. After we've blown out the dirt we seal the grout to insure that it stays clean and resists staining. There is no need ot get on your hands and knees and scrub your tile floors anymore.