All-Clad Copper Core 2 Qt. Sauce Pan w/Porcelain Double Boiler & Lid This 2 Quart Copper-Core Sauce pan with lid fitted with a 1.5 Quart Porcelain Double Boiler insert delivers heat slowly and gently, preventing scorching and separating of delicate ingredients. Using a double boiler with a ceramic insert is preferred when working with chocolate, cream based desserts and sauces. It is also ideal for reheating foods, the insert providing a cushion against high heat that might change the consistency or flavor of the food being reheated. MPN:62025SS