This double boiler is ideal for melting chocolate, caramel, custard and sauces slowly and evenly to avoid scorching. The vented glass lid allows steam to escape, which helps keep glass lid clear for viewing. It is capable of holding 1.5Qt/1.4L. The pan is made of stainless steel with a polished mirror finish. This set includes a steamer, boiler and vented tempered glass lid. Hand washing recommended