de Buyer Mineral Pan, Fry Pan - set of 3 (includes 99% iron, organic pan is the preferred pan of conscientious cooks;Ecologically-responsible pan is 100% recyclable;Performance improves over time, the more the pan is used the darker it becomes for all-natural nonstick cooking;Safe for all heat source 99% iron, organic pan is the preferred pan of conscientious cooks Ecologically-responsible pan is 100% recyclable Performance improves over time, the more the pan is used the darker it becomes for all-natural nonstick cooking Safe for all heat sources, including induction