Here are some poultice recipes diy solutions that can help tackle them i ve also tucked in a recipe you can use for everyday cleaning.
Marble stains cleaner.
How to clean cultured marble.
Follow the above directions for removing rust stains from marble to effectively remove organic stains.
If you spilled anything oil based like a vinaigrette.
Marble and granite counter tops are gorgeous but they are porous and will soak in liquids that can leave stains even sitting water.
You can create a marble poultice using 6 hydrogen peroxide and a few drops of ammonia.
1 x research source clean up orange juice wine and coffee as soon as they are spilled.
In most cases this should be sufficient to remove the water stains however if this does not work then we recommended trying a marble cleaner specifically designed to remove hard water stains and soap scum.
Dry the surface around the water stain then rub in a circular pattern over the stain until the stain buffs out of the marble.
Cultured marble is different from natural marble in that it has a resin finish that is non porous and more resistant to stains.
The best way to address mold stains is to use a product that is specifically designed for removing mold and mildew stains on marble such as this one.