Dominick from AskMeDiy demonstrates what he says is the right way, and the easy way, to clean your tile grout.
Rather than buying one of the light-duty grout cleaners found at the store, he uses a heavy-duty professional grade cleaner for this job. He demonstrates the difference between the two types of cleaners by pouring some of each on the grout and letting them sit for the same amount of time. He uses a brush to loosen the dirt and wipes it up with a rag. The professional grade cleaner proves to do a superior cleaning job and the result is a nice clean floor with less work. And as an additional bonus, the professional grade cleaner is less expensive.