Our product is handcrafted from copper. The inside of the teapot is definitely tin. It has high thermal conductivity. SPECIAL BASE with high thermal conductivity Tinning was done using traditional methods. It is long lasting and durable. Do not wash in the dishwasher. USE IT ON GOOD DAYS. :)
*note: Products should never be cleaned with chemical-containing cleaning products and should not be washed in the dishwasher. The tin may be damaged. Can shorten lifespan