Q&A · maintenance
How can organic stains like coffee or wine be removed from natural stone?
Organic stains, like those from coffee, tea, or wine, often appear pinkish-brown. Indoors, clean these stains with a solution of 12% hydrogen peroxide and a few drops of ammonia. Outdoors, sunlight and rain can naturally bleach out such stains once the source is removed. Blot spills immediately.