Numerous homemade grout cleaner recipes utilize baking soda, an effective scouring agent, as the primary cleansing ingredient. Bleach, lemon juice, ammonia, white vinegar, water, hydrogen peroxide and isopropyl alcohol are all common secondary ingredients in many homemade grout cleaner recipes.
One simple homemade grout cleaner recipe mixes one part water with three parts baking soda to create a thick paste that users can apply to any type of grout. Another common homemade grout cleaning paste for white or light-colored grout lines calls for 1/4 cup bleach and 3/4 cup baking soda. Regardless of the formulation, all homemade grout cleaner recipes must sit on the grout for at least 10 minutes to work.