Clorox bleach is an effective method for removing stains or built-up residue from grout. Applying the bleach to it directly will brighten these discolored areas and give them a cleaner appearance. To effectively clean the grout and avoid potential damage, do not mop the entire floor with the Clorox bleach. Create a combination of 1 part bleach to 1 part water in a spray bottle before applying.
Shake the Clorox bleach and water mixture before attempting to apply it to the grout. Shaking the bleach will help remix any settling that may have occurred in storage. Only shake the bleach in the spray bottle to avoid potential spills and messes. Make sure the lid is on tightly before shaking the bottle, and always shake it away from your body.
Practice spraying a small area of the grout from different distances to determine the best application method. The smaller the grout lines are, the closer you should hold the bottle when applying the bleach. Try to get most of the bleach on the grout itself rather than any surrounding surfaces.
To apply the bleach to the grout, gently spray the areas containing the stains. Wipe up any bleach that touches any other surfaces immediately. If the bleach touches a dark surface, rinse the area with water to avoid any potential damage.
Rub the bleach into the stains using a paper towel or clean white cloth. Wipe away the excess bleach with the paper towel or cloth and rinse the area with water. If the grout contains any additional stains, repeat the process and allow the bleach to sit on the grout for five to 10 minutes before rinsing.
Clorox Gel Pen
Clorox also has a bleach gel pen available for cleaning grout. Shake the pen before use and choose a tip that matches the size of your grout. Place the tip directly on the grout and squeeze it gently. Upon finishing, rub the gel into the grout using a cloth or paper towel. Rinse any remaining gel bleach from the grout and wipe it away from any surrounding surfaces.