Your first instinct may be to chisel it off with a metal tool such as a putty knife but this can.
How to get grout off of floor tiles.
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.
There are a few good reasons why you might want or need to remove old tile grout.
Armed with this handy tool you can remove 15 square feet of grout on 4 by 4 inch tile in about one hour.
If your tile is porcelain or ceramic try a vinegar solution to remove grout.
The old grout might be moldy and beyond cleanable.
Once it has cured however old grout can be difficult to clean from tiled floors and walls.
No special chemicals or solutions are required.
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.
If you have yet to remove all the grout haze continue to method 3.
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.
By applying water to the surface it will soften the grout and make it easy to scrape and wash off.
However just because the grout is dried doesn t mean you can t fix the problem.