Guide
Most marble stains can be lifted with a poultice: a paste that draws the stain out of the stone. The right paste depends on the stain.
01
Coffee, tea, wine, food. A poultice of baking soda and a little hydrogen peroxide (12 percent or lower), covered with cling film for 24 hours. On dark stone, test first.
02
Cosmetics, cooking oil. A poultice of baking soda and water, or a commercial oil-stain poultice. It may take several rounds.
03
Water rings on sealed marble are usually surface deposits. Remove with a pH-neutral stone cleaner. Do not use vinegar or descaler; they etch the stone.
Questions
No. Vinegar is acidic and will etch the surface.
Sometimes, with a specialist rust remover for stone. Test on a hidden area first.
When a stain survives two or three poultices, or when the surface is etched as well.
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