Scrubbing with stiff bristle brush after applying ceramic tile/grout cleaner per instructions. Such a cleaner will contain bleach. Apply the cleaner and leave it for a few minutes to soak in and do its job; will take less elbow grease thereafter. Be careful in use of bleach (out of the bottle) added to other cleaners; sometimes a chemical reaction will create fumes which may be toxic, damaging to lungs.
Chlorox or SoftScrub with bleach.
A Sargeant Steam clean machine. It heats up to 295 degrees and dissolves all the mold, mildew and cleans the grout.
dont laugh, toothpaste with a whitening agent in it
Scrubbing with stiff bristle brush after applying ceramic tile/grout cleaner per instructions. Such a cleaner will contain bleach. Apply the cleaner and leave it for a few minutes to soak in and do its job; will take less elbow grease thereafter. Be careful in use of bleach (out of the bottle) added to other cleaners; sometimes a chemical reaction will create fumes which may be toxic, damaging to lungs.