Newly installed porcelain tile often has a white residue called grout haze eliminate the haze from your tile with instructions from a professional contrac.
Ceramic tile haze remover.
Try using a professional grout cleaner designed for epoxy grout haze.
Hardened grout haze on ceramic or porcelain tiles will require an acidic cleaner and a scrubbing pad to remove the grout haze.
Do not use this acidic cleaner on any types of acid sensitive tiles like marble travertine or limestone.
Heavy duty acidic cleaner.
Grout haze remover is widely available at any tile store home improvement store or hardware store or online.
You can use a commercial acidic grout haze cleaning compound.
Avoid using a green tile sponge as it may transfer color to the grout.
Removing the grout haze off of stone tiles will require using a non acidic grout haze remover product.
Heavy duty acidic cleaner is a fast acting heavy duty acid cleaner for textured non polished natural and manufactured surfaces.
Mix 1 part vinegar to 4 parts water and use this to wipe down the tiles.
A couple of well known brands are dupont and sci.
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.
You can also make a homemade grout haze cleaner using household vinegar.
Diluted vinegar on porcelain or ceramic tile only and a nylon scrub pad and a commercial grout haze remover.