How do you get black mold out of white grout?
How do you get black mold out of white grout? Stir 1/2 cup of baking soda and several teaspoons of water to make a paste you can spread directly over the mold. Apply the paste to the moldy grout, let it sit for 10 minutes, then scrub away with a bristle brush. Rinse with water and repeat, if necessary.