Samuel Groves 18cm stainless steel saucepan has a 3 layer, tri-ply design which comprises a stainless steel exterior and interior, sandwiching a thermally efficient aluminium core. The solid 3mm body makes these pans very sturdy and durable. The outer stainless steel layer protects the cookware from scratching and rusting, and it will not react when it comes in contact with acidic or alkaline foods. The design guarantees superb heat distribution, resulting in consistently fantastic cooking performance.