Avoid using a green tile sponge as it may transfer color to the grout.
Ceramic tile haze remover.
Removing the grout haze off of stone tiles will require using a non acidic grout haze remover product.
Use a mop or spray bottle to apply the cleaner to the flooring then scrub each tile with a white tile sponge.
Hardened grout haze on ceramic or porcelain tiles will require an acidic cleaner and a scrubbing pad to remove the grout haze.
Using vinegar to remove grout haze is not a good idea when cleaning stone or other porous tiles however.
Heavy duty acidic cleaner is a fast acting heavy duty acid cleaner for textured non polished natural and manufactured surfaces.
Epoxy grout haze can be difficult to remove with mild cleaners or scrubbing tools.
Heavy duty acidic cleaner.
Try using a professional grout cleaner designed for epoxy grout haze.
Be careful not to confuse grout sealer or grout cleaner with grout haze remover.
A couple of well known brands are dupont and sci.
You can use a commercial acidic grout haze cleaning compound.
Before you start removing grout haze allow grout to harden fully.
Newly installed porcelain tile often has a white residue called grout haze eliminate the haze from your tile with instructions from a professional contrac.
You can also make a homemade grout haze cleaner using household vinegar.
Grout haze remover is widely available at any tile store home improvement store or hardware store or online.