A solution of white vinegar and water and then rinse if stubbon use more vinegar. works very well!
Do not use vinegar as an every day cleaner on tile, just to remove the grout haze.
I have been grouting a bathroom that has the same problem. The owner of the house started the grouting job and quite messed it up (grout on the face of the tiles). He assures me that he will use a buffer to get the grout off. Not sure how this work. We will see if the buffing scratches the tiles.
I actually wetted it down with water and a clean rag; then used a plastic knife to gently scrape it off..came off easily.
I agree with Rhonda G. I would however use a razor blade. If it's ceramic, doubt that the razor blade would hurt it and I think it would come off faster.
They make a liquid grout off, I've seen it in lowes or home depot
thanks for all the ideas. I will get busy on it this weekend.
Janet, PLEASE TRY the vinegar and water IT WORKS!!!!! I work In a flooring dept for a major home retailer and a lot of contractors use this!!! Yes there are grout removal products you can purchase but this REALLY does work!
Thanks for the vinegar info. There is grout in every corner of my kitchen and bathrm. hope this works.. it is making me crazy")
a new sharp scraper. And very very carefully scrape it off- a single edge razor blade also works.
Use a scotchgard scrubber that is recommended to not scrape things. Something ruff will ruin the tile surface. I believe in viniger and water for cleaning tiles and laundry too.
Your grout may be cement based or it may be a composition grout out of a can. I would contact the nearest tile wholesaler for manufacturers recommendations. There are some methods that can damage the surface of certain tiles.