This Japanese made direct flame Japanese cast iron teapot can be used to boil water over direct flame or electric stovetop. Unlike its cast-iron clones, this kettle does not contain an enamel coating on the inside. Instead, a naked iron kettle mineralises and softens the water you boil in it, which makes for a noticeably richer, sweeter brew with less bitterness, greater depth, and smoother character. This kettle is a genuine handmade kettle forged in the Morioka Tohoku region in Northern Japan.