Zepter Pot Masterpiece Cookware New 2014 Year Model # Z-2050. ACCUTHERMAL BOTTOM Masterpiece Collection Accuthermal Bottom The most important part of Zepter cooking system, the accuthermal compact allows bottom cooking without water and roasting without fat. Its multi-layered design and light metal components enable the cookware to accumulate and develop energy evenly and quickly. Heat from the burner rapidly passes through the bottom to the walls without losing its intensity, and then spreads evenly throughout the entire utensil. Food does not stick to the bottom and walls, and the handles stay cool to the touch. The bottom also keeps very high temperatures without warping.