Remove Stains From Marble Countertops. We used Poultice stain remover it worked very well. Place the poultice directly onto the stain on your marble countertop with the chalk side down.
Place the poultice directly onto the stain on your marble countertop with the chalk side down. The poultice needs time to draw the stain out of the marble surface. Now slather it completely with a paste made from baking soda and water to the consistency of sour cream.
Try to scrape the minerals away completely.
Cover the poultice with plastic wrap and tape the edges. For most organic food stains the Marble Institute recommends cleaning with a solution of 12 hydrogen peroxide and a few drops of ammonia. Leave covered for at least 24 hours the baking soda will dry and pull up much of the stain. Marble Stain Cleanser 1 gallon of water 1 teaspoon liquid soap Bucket Soft sponge 0000 steel wool Soft cloth.
