Copper pot stills are traditional distillation devices made primarily from copper. They consist of a large pot where the liquid is heated, and a condenser that cools the vapor back into liquid form. The copper material helps remove impurities and enhances the flavor of the distilled product, making it popular for producing spirits like whiskey and rum. These stills operate on a simple principle: as the liquid heats up, it turns into vapor, which rises and is collected in the condenser. The design allows for batch distillation, meaning each batch is processed separately, resulting in unique flavors and characteristics in the final product.