Begin cooking on individual burners and when the valve whistles, you can stack the pans to finish cooking. The handles are superbly styled and are resistant to heat, cold and detergents.Sets 17pc waterless surgical stainless steel cookware set before you invest up to $2000 in cookware, considre our advantages and superior features. Double boiler unit with capsule bottom that can laso be used as an extra 3qt pan. High dome cover for sklilet or roaster. Includes a great cookbook for meal time recipes. Heavy surgical stainless steel construction. Set is not the one for induction stoves it does not have the carbon steel needed.