Traditional mopping does nothing but spread soil and bacteria around in a more even layer. And the way you clean your grout at home, getting down on your hands and knees with a scrub brush or other harsh tool, just isn't practical in a large and potentially dangerous space such as a restaurant kitchen. Even scrub brushes on handles leave most of the soil and bacteria behind. The best way to ensure that your kitchen floor grout is clean and sanitary is by using for Food Service.
It is manufactured in the USA by the USA Chemical Corporation that focuses solely on tile cleaning products, which is a good sign. I recommend Grout Sensation as a good all round cleaner for most common bathroom and kitchen grout cleaning situations. It’s moderately priced and effective, what more do you need?