Both Neoceram and Pyroceram clean easily with any standard glass cleaner or whatever product/method you use to clean regular glass. For especially stubborn buildup, you can also use a mild oven cleaner, cooktop cleaner, hand dishwashing detergent and water or a baking soda paste. Be gentle and be sure to use only a non-abrasive cloth or a paper towel. Never use abrasive powders or pads or you’ll risk scratching the glass.