How can I get my grout white again?
How can I get my grout white again? Saturate the grout with lemon juice, a mild disinfectant that gets rid of grout stains naturally. You can also use white vinegar for chemical-free grout cleaning. Simply pour vinegar from the bottle into the cap and pour it over the dirty grout lines. Allow the lemon juice or vinegar to sit for 10 to 15 minutes.