Japanese cast iron teapot, enamelled interior, with internal stainless steel filter. The Japanese cast iron teapot was originally an old kettle that could be placed on a high fire to heat the water. To adapt its use to current needs, an enamel now covers the interior and thus facilitates its use and maintenance. The teapot can therefore no longer be used directly on a heat source. For a cup of tea with an optimal aromatic profile!