Grout Cleaning Methods Depend on Tile Type and Residue Source
https://charlie-wiki.win/index.php/Grout_Cleaning_Methods_Depend_on_Tile_Type_and_Residue_Source
Your grout cleaning approach really needs to match what kind of tile you have, because using the wrong method can damage the surface. For example, acidic cleaners work great on sturdy porcelain or stone tiles but can etch or dull softer, polished tiles like marble or limestone. The source of the residue matters too; a soap scum build-up responds differently than a mold or hard water stain. Often, a simple baking soda paste is safest for most grout, but for stubborn set-in stains or efflorescenc…