In some cases you can enlist vinegar.
Cleaning dried grout off ceramic tile.
Cleaning grout off tile with vinegar is safe and efficient for ceramic and porcelain tile installations and grout but acid cleaners should never be used on porous or stone tiles which includes vinegar and rubbing alcohol.
By applying water to the surface it will soften the grout and make it easy to scrape and wash off.
Let the floor dry.
No special chemicals or solutions are required.
Rinse the tile faces and grout joints with a sponge and clear water immediately after scrubbing each section.
If some grout remains repeat scrubbing it with the sugar water.
Grout is made of cement and dries quickly.
If grout gets on the tiles during application it can be removed with the proper products and methods that can remove the residue without scratching or damaging the tile.
If your tile is porcelain or ceramic try a vinegar solution to remove grout.
Excess grout can mess up a ceramic tile job.
Clean the sponge frequently as you work and replace the rinse water as it gets dirty.
If you are grouting ceramic or porcelain wall or floor tiles it can be easy to leave small lumps of grout on the tiles surface and around the joints.
However just because the grout is dried doesn t mean you can t fix the problem.
One sure way to ruin a tile job and make it look unprofessional is to have dried grout all over the top of the tiles.
To actually remove the grout scouring pads and water work best.
Wet grout is easy to wipe away with a damp sponge but because it is comprised mainly of cement it can be very difficult to fully remove dried grout from porcelain tile.
Fortunately there are a few methods that can help to remove even the most stubborn dried on grout from tiles without damaging the finish of the tile.
Repeat the same process to scrub and rinse each small section of the floor until the entire tile installation is clean.
Rinse the tile with clean water to remove the sugar solution.
Wipe the tile dry with a clean towel to make sure all grout is removed.
To avoid excess grout use a release agent on the ceramic tile.