How to Remove Black Stains from Floor Grout

  1. dissolve mineral deposits and some types of residue. However, it is important to use vinegar only on surfaces that tolerate acidic cleaners.Tile maintenance tips

For ceramic or porcelain tile with compatible grout, diluted vinegar may sometimes be useful for surface deposits. Apply it sparingly, scrub gently, and rinse the area thoroughly afterward.

Do not use vinegar on acid-sensitive natural stone such as marble, limestone, travertine, or similar materials. Acid can permanently dull or etch these surfaces.

Should You Mix Vinegar and Baking Soda?