Formulated for heavy-duty cleaning without scratching, ceramal bryte is the choice for removing tough stains while regular use helps maintain shine and performance. The formula does not contain silicone or other substances that could harm the cooktop surface. Ceramal Bryte has been tested and qualified forCeran by Schott, the maker of the glass cooktop portion of all ranges. Ceramal Bryte has been lab tested asreadilybiodegradable.