Made for large batch cooking, the Bayou classic tri-ply stockpot lets you steam, boil and brew enough for a whole crowd and then some. The stainless steel stockpot has a tri-ply bottom with 5-mm layers of stainless steel, aluminum and stainless steel. This professional innovation provides even heat distribution to keep your stews from scorching and sticking to the pot. The 40-qt stockpot has a stainless vented lid, stamped calibration marks and side indentation for holding steam trays (sold separately) up off the bottom.