Be careful not to confuse grout sealer or grout cleaner with grout haze remover.
Ceramic tile haze remover.
Removing the grout haze off of stone tiles will require using a non acidic grout haze remover product.
Using vinegar to remove grout haze is not a good idea when cleaning stone or other porous tiles however.
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 use a commercial acidic grout haze cleaning compound.
Hardened grout haze on ceramic or porcelain tiles will require an acidic cleaner and a scrubbing pad to remove the grout haze.
Before you start removing grout haze allow grout to harden fully.
Grout haze remover is widely available at any tile store home improvement store or hardware store or online.
You can also make a homemade grout haze cleaner using household vinegar.
Do not use this acidic cleaner on any types of acid sensitive tiles like marble travertine or limestone.
Epoxy grout haze can be difficult to remove with mild cleaners or scrubbing tools.
A couple of well known brands are dupont and sci.
Heavy duty acidic cleaner.
Use a mop or spray bottle to apply the cleaner to the flooring then scrub each tile with a white tile sponge.
Mix 1 part vinegar to 4 parts water and use this to wipe down the tiles.
Try using a professional grout cleaner designed for epoxy grout haze.