This casserolestockpot is made of die cast aluminium far superior to cheaper pressed out pans die casting allows cookware to have a thicker base preventing hot spots and gives this dish optimum heat conductivity up to an amazing 230c446f second the dish is coated both inside and out with ecolon created from the natural minerals of the earth to offer a healthier cooking surface providing superior non stick performance cooking with little or no oil ecolon does not emit harmful pfoa