RSVP 2 Quart Stainless Steel Double Boiler feature a top insert pan with curved sides that allow smooth mixing and blending while the heavier bottom pan features an encapsulated tri-ply base for quick, even heating. Both pans are made from quality stainless steel. The fully tempered glass lid is oven-safe to 450F and fits both the upper insert and bottom pan. Dishwasher safe. 1 qt. capacity.