[Double Layer Structure]:The inner layer is made of 304 stainless steel, and the outer layer is made of 403 stainless steel.Each layer has 0.45 mm Thickness. [100 Cup Large Capacity]:commercial use coffee machine, fast brew 100 cups of coffee-14 L, suitable for parties, business meetings, office and other professional occasions to provide sufficient amounts of coffee. [304 Food Grade Stainless Steer]:Made of food grade 304 stainless steel, resistant to high temperature, corrosion and oxidation. Balance the need for safe use with robustness. [Rapid Heating]:1500W double heating tube design that can heat 120 cups of coffee in 30 minutes. The shell is made of 403 steel, with good heat insulation, you do not have to worry about hand burns.Voltage-220-240V/ 50HZ. [East to Use]:The scale inside the urn gives you a clear observation of how much water is in the urn and how much water needs to be added and the shell is equipped with water-level indicators which can make you clear about how much water in the urn. Stainless steel pot is easy to clean.