Copper cookware provides incredible conductivity, and this range meets professional standards thanks to its triply construction. The outer layer of solid copper, an inner layer of stainless steel and an aluminium core (extending from the base of the pan to the rim) result in even heat distribution throughout the pan. This means no unpredictable hotspots, which is essential when warming milk or stirring a silky-smooth sauce or custard. This pan's sturdy, stainless steel handle stays cool and is firmly riveted in place providing strength and durability, while internal capacity markings make accurate measuring a breeze. Suitable for all hobs, including induction. To add to the pan's charm, the copper has a classic look that's too attractive to store behind cupboard doors. Copper can darken over time due to the natural oxidisation process, so use a copper cleaner to polish the pan's exterior. Getting the most from your induction pans All of our John Lewis induction pans are tested to the British and European standards for safety and performance. To ensure the functionality of induction pans, it is important to make sure the magnetic circuit with the hob isn't broken by: Making sure the size of the pan base is no smaller than the hob 'ring'; Using pans with a flat base Not lifting the pan off the hob top continuously Giving coated and aluminium pans with steel bases more time to heat, as the aluminium sides do not heat directly from the hob