Things You'll Need
Cleaner with neutral pH level
For the most part, soapstone is a stain-resistant material. Occasionally, however, something may seep through the surface and leave a dark stain. Soapstone cannot be cleaned like other surfaces. It has a sensitive makeup that can be damaged if the correct materials are not used. Once you have completely removed the stain, you can prevent future stains by applying a coat of mineral oil to the soapstone surface.
Pour an all-purpose cleaner that has a neutral pH into a spray bottle. True 7 and Earth Choice are two examples of brands that sell cleaners with a neutral pH.
Spray the cleaner onto the stained area.
Dampen a soft cloth, and rub it in a circular motion over the stain. If the stain does not disappear, go on to step four.
Scrub the stain with 80-grit sandpaper until the discoloration disappears. This may take a while, but do not use anything rougher than 80-grit, or you will scratch the surface.
Pour mineral oil onto a clean cloth, and rub the cloth over the soapstone surface. Make sure the surface is covered with a thin layer of mineral oil, and let it seep into the surface. Repeat this process every eight weeks to prevent new stains from showing up.
Megan Richardson began her career as a freelance writer and editor in 2009. She has experience in public relations and event planning, and she worked as a writer's assistant to a published author for more than a year. Her work has also appeared in "The Daily Sentinel." Richardson holds a Bachelor of Arts in communication and journalism from Stephen F. Austin State University