You can create a marble poultice using 6 hydrogen peroxide and a few drops of ammonia.
Marble stains cleaner.
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.
For most organic food stains the marble institute recommends cleaning with a solution of 12 hydrogen peroxide and a few drops of ammonia.
Marble stains very quickly especially if a liquid is allowed to sit untouched for a period of time.
How to clean cultured marble.
Marble and granite counter tops are gorgeous but they are porous and will soak in liquids that can leave stains even sitting water.
Cultured marble is different from natural marble in that it has a resin finish that is non porous and more resistant to stains.
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.
If you spilled anything oil based like a vinaigrette.
You can either use regular marble cleaner or try removing the stain using grade 0000 steel wool.