A Siemens glass ceramic cooktop provides accuracy in the kitchen. The glass ceramic cooktops have various power levels, so you can always select the right setting for your dish. In a hurry and want to preheat a pan faster? The highSpeed function allows you to cook quickly. Your pans heat up faster, so you can start to fry, grill, and cook right away. Some models are extra flexible and have a roasting zone or 2 or 3 separate cooking zones, so the cooktop only heats up where necessary. This way, you can quickly and easily save energy.