The benefits of tea kettles with a copper base includes all the wonderful heat conductivity properties of copper. The Chefs Secret Tea Kettle is super fast to heat water due to the fact it has a copper capsule base. The copper is an excellent heat conductor and will spread the heat quickly. The sides of the tea kettle is made with T304 Stainless Steel for durability. Features a handy opening lever, cover with knob, comfortable handle, and whistles when the water is ready. Holds 2.75 quarts of water.