You can use a commercial acidic grout haze cleaning compound.
Ceramic tile haze remover.
Try using a professional grout cleaner designed for epoxy grout haze.
You can also make a homemade grout haze cleaner using household vinegar.
Using vinegar to remove grout haze is not a good idea when cleaning stone or other porous tiles however.
Before you start removing grout haze allow grout to harden fully.
Be careful not to confuse grout sealer or grout cleaner with grout haze remover.
Do not use this acidic cleaner on any types of acid sensitive tiles like marble travertine or limestone.
Hardened grout haze on ceramic or porcelain tiles will require an acidic cleaner and a scrubbing pad to remove the grout haze.
A couple of well known brands are dupont and sci.
Newly installed porcelain tile often has a white residue called grout haze eliminate the haze from your tile with instructions from a professional contrac.
Grout haze remover is widely available at any tile store home improvement store or hardware store or online.
Mix 1 part vinegar to 4 parts water and use this to wipe down the tiles.
Heavy duty acidic cleaner is a fast acting heavy duty acid cleaner for textured non polished natural and manufactured surfaces.
Heavy duty acidic cleaner.
Epoxy grout haze can be difficult to remove with mild cleaners or scrubbing tools.
Removing the grout haze off of stone tiles will require using a non acidic grout haze remover product.