Double boilers are necessary for many delicate tasks, such as melting chocolate, but the average home double boiler does not have the capacity often required by a professional kitchen. For high-volume cooking, 16 qts. - 18 qts. stainless steel double boilers offer the standard configuration of an outer pot to hold boiling water with a fitted inner pot to hold ingredients. The temperature retention and heat distribution of 16 qts. - 18 qts. stainless steel double boilers is just as reliable and consistent as that of smaller double boilers. When purchasing 16 qts. - 18 qts. stainless steel double boilers, pay attention to the details to ensure you selection will meet your particular kitchen's needs.