The Barcelona collection is designed to last a lifetime. It"s multilayer stainless steel body combines the excellent heat conduction of aluminum with the long lasting quality of stainless steel. The cast stainless steel handles fit perfectly in your hands and have a timeless look and feel. Using Thermo Lon nonstick mineral coating our pans are produced without any PFOA (perfluorooctanoic acid), PTFE (polytetraflourethylene), or silicone oil. In this way, there is no danger that these chemicals will be released into the environment and harm the health of human beings. Moreover, our nonstick surface is applied at lower temperatures than normal PTFE nonstick coating. Consequently significantly less energy is needed to apply the surface thereby reducing emission of carbon dioxide by 60-Percent. Each pan is heat resistant up to high temperatures. If you accidentally overheat your pan, even up to 450°C/850°F, no toxic fumes will be released and the coating will not blister or peel.