I have white tile and grout in my bathroom and kitchen. How can I keep the grout clean?

Loane T.
7 c water, 1/2 c baking soda, 1/3 c lemon juice, and 1/4 c vinegar. Throw in a spray bottle, spray floor, let sit for a couple minutes, scrub. 👍🏼😁
Mat O A.
Cleaning it weekly with chorine and washing powder, mix both together and use a brush of your preference, to maintain it white.