Tile floors should be washed on a regular basis using a detergent solution recommended for cleaning tile floors. This should be followed with a rinsing of the floor with warm water to avoid detergent build-up. Never use an ammonia-based cleaner on a tile floor.
Common spills can usually be cleaned using an all-purpose detergent hard floor cleaner.
A grout sealer (non-epoxy) should also be applied twice a year to protect the grout from staining. Please note that tile floors should never be waxed.