There are several positive/negatives to each material. Copper is heavy, soft, corrodes, not easy to clean, and conducts heat really well, and expensive. Al is cheap, soft, light, conducts pretty well, and is soft enough that it will pit with heavy use (look at any commercial kitchen’s older aluminum pans). Stainless…

There are several positive/negatives to each material. Copper is heavy, soft, corrodes, not easy to clean, and…