Material: New and improved Anodised Aluminium Coating: Triple layer of new Teflon Platinum Handles: Riveted Stainless Steel The Hard Anodised treatment process is a recent development to harden the surface of aluminium cookware. This process results in a surface finish which is very hard, and impervious to food acids. The pan itself retains the even heating and heat conductivity of aluminium. All items have been tested to British Standards. Care and use: Suitable for use on gas, electric hob, ceramic, halogen and solid fuel stoves. Dishwasher safe, or alternatively wash with detergent and a brush or nylon pad. Oven safe up to 200°c/400°F/Gas Mark 6 beware handles will become very hot Can be used under the grill and in the oven but beware that handles will become very hot. Not suitable for microwaves or induction cooking Do not allow cooking fluids to spill over, as this may discolour the outside of the pan Never add salt to cold pans as under some conditions a blueing of the metal may occur; this is not a fault but a normal property of stainless steel: it may also cause pitting.