With the pans from the Tefal Renew line, you can prepare food in an environmentally-friendly way. That's because they're made of 100% recycled aluminum. The pans have a 5-part ceramic non-stick coating. This means they're free from harmful chemicals and you can prepare your ingredients faster and at a higher temperature. You can use the pans on all heat sources, including induction. The Thermo Signal dot turns solid red when the pan reaches the right temperature. That's useful, because you know exactly when to place your pieces of meat or fish in the pan.