Icook&reg; 27-piece Cookware Set Exclusive iCook technologies make cooking healthier and cleanup easier. ulti-ply construction with a carbon-steel core for even heat distribution and inner and outer layers of 18/10 surgical-grade stainless steel. OptitempTM fully encapsulated cooking base that improves heat distribution by 92% over Queen Cookware and works with any style cooktop. The ease of stack cooking, which will help you save space. The VitalockTM cooking method, which locks in one-third more nutrients, without added fats or unnecessary water.