Ask any seasoned chef and they will tell you that the best cookware is made out of copper. The qualities that make copper a superior material for cookware are also the features that make copper pots and pans extremely sustainable kitchen utensils. Here are 3 reasons why: Precise cooking conserves resources. Professional chefs in top kitchens rely on stock pots, saute pans, and bowls made of copper. That's because copper is a superior heat conductor when compared to metals like iron and stainless steel.