When cleaning grout, avoid using harsh chemicals like bleach. These chemical cleaners are not only harmful to you, because they cause unnecessary VOC’S to enter the air but they can also break down sealants that protect your grout. The best way to clean grout is using a natural grout cleaning method. We recommend mixing 1/2 cup of baking soda, 1/4 cup of hydrogen peroxide, and three squirts of a non-toxic, all purpose cleaning solution. Mix together the baking soda, hydrogen peroxide and all-purpose cleaner. Brush the mixture onto grout, wait 15 minutes, scrub and rinse. Our company uses Branch Basics for all of our interior cleaning. It’s human safe and non-toxic so this way you know you are getting a quality clean with safe ingredients.