Q. How do I treat an organic or inorganic stain?

A. The chemical of choice for both organic and inorganic stains is hydrogen peroxide (30/40 volumes, the clear type – available at your local beauty salon. The one from the drugstore is too weak, at 3.5 volumes). Sometimes, such as, in the case of ink, denatured alcohol (or rubbing alcohol) may turn out to be more effective. For more information on caring for surfaces check out our free, downloadable Stone and Tile Care Guide.