This cooktop cleaner will cut through tough grease and baked-on residue. The cleaner will leave a protective coating of silicone on the cooktop surface as it cleans. This 10oz bottle is safe for all glass, porcelain, and ceramic cooktops. Just apply a small amount to your cooktop and use a circular motion by using a sponge or a rag and gently press until the grease or baked residue has been removed. Please remember to wear gloves to protect your hands while working with the cooktop cleaner.