A Japanese Cast Iron Kettle or Teapot is known as a Tetsubin (鉄瓶). Unlike most Western teapots, the Tetsubin features a pouring spout, a lid, and a handle crossing over the top, traditionally used for boiling water. To keep your ironware in peak condition, follow our guide to Japanese cast iron care. These durable pieces aren't just tools; they are beautiful works of art that develop character over years of use.