Things You'll Need
Sudsing ammonia or white vinegar
Mop and mop bucket
Spilled coffee, tea or dye can produce yellow stains on kitchen or bathroom tiles. Another cause of yellow tiles is using cleaning products with wax, which can build up on tiles and tint the tiles yellow. No matter the cause of the yellowing tiles, you can make them white again with a few common household products.
Fill a mop bucket with water and add ¼ cup sudsing ammonia or white vinegar.
Mop the yellowed tiles with the solution and rinse with plain water.
Coat remaining stains with a solution of hydrogen peroxide mixed with three or four drops of ammonia. Allow the solution to sit on the tiles for 24 hours.
Rinse off the solution with plain water and repeat if necessary.