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Cookware for induction hobs must be made from magnetisable metal, such as cast iron or stainless steel. Pure copper or aluminium pans are not suitable for induction hobs, unless they incorporate encapsulated steel or iron bases.
Cast iron pans and any black metal or iron pans will work on an induction cooking surface. Stainless steel pans will work on an induction cooking surface if the base of the pan is a magnetic grade of stainless steel. If a magnet sticks well to the sole of the pan, it will work on an induction cooking surface.