As for cleaning, all pizza stones are the same. Due to the nature of the material, cordierite or ceramic, the surface is usually porous. So, fat or moisture from the pizza usually penetrates the stone. This means that the stone comes into contact with stains and possibly even coarser dirt. The pizza stone must never be put in the dishwasher and must not be cleaned with detergent. To clean the pizza stone, simply take a damp cloth and wipe it over it. If you need to use water, ensure it has completely cooled.