White vinegar handles general dirt, hot water deposits, soap scum and mildew, which means it works well at cleaning most kinds of bathroom floor and wall tile. The exceptions are marble, travertine or granite tile, which may be damaged by acidic cleaners such as vinegar. Vinegar is safe for ceramic, porcelain, vinyl and laminate tiles and makes them clean and shiny.
Pour ¼ cup of white vinegar into a bucket containing 1 gallon of warm water, as suggested by Ecocyle for cleaning ceramic tile. This vinegar and water solution may be used on all tile materials except for natural stone such as marble, granite and travertine.
Put on rubber gloves. Dip a clean sponge in the solution.
Scrub down all wall tile, if applicable, with the sponge soaked with the vinegar and water solution. For any mildewed areas, add a little extra vinegar by pouring vinegar directly on the sponge and wiping this over the mildew.
Sweep tile floor and then mop it with the vinegar and water solution. Leave the room and let the vinegar have some time to kill mildew. Housecleaning 411 recommends waiting 5 to 10 minutes.
Rinse off the mildewed areas of tile on the walls with a sponge, dampened in clean water. Mop the floor with clean water to rinse away the vinegar water solution.