Clean grout with baking soda and vinegar. You need to see this before and after-- YES, you CAN clean grout safely using just two items I'm sure you already have in your home! Check out this quick tip and see how you can get clean grout in minutes flat!
Tile Grout Make sure you don't accidentally breeze over gunk with the help of a small, divot-friendly brush. Mix cup of household chlorine bleach with 1 gallon water, let the combination sit on the grout for several minutes, then scrub away.
hydrogen peroxide in a spray bottle. mixed cup hydrogen peroxide with 1 cup water and put it in a spray bottle. Then I sprayed down all my corners and let it sit for one hour. After an hour passed, I wiped down.
Homemade tub, tile, and grout cleaner - myCleaningSolutions.com