The housing of all сookware Gréta are made of cast aluminum: heats evenly and no deformation. Reinforced 5 layer non-stick coating based on granite structure. Coating does not contain PFOA, cadmium, and lead and is completely safe. Housing made of cast aluminum: heats evenly and no deformation. Permitted to use non-sharp metal utensils. Suitable for all types of cookers, including induction. Stay-cool handle coated with "Soft-touch" prevents slipping. Guarantee on Gréta series cookware is 5 years.