Tetsubin

thumb|A tetsubin cast-iron kettle is suspended over an irori hearth in a traditional Japanese style farm house, at the Boso-no-Mura Museum thumb|alt=A video with the camera spinning around a tetsubin on a brasier (hibachi)|A tetsubin on a brazier (hibachi) are Japanese cast-iron kettles with a pouring spout, a lid, and a handle crossing over the top, used for boiling and pouring hot water for drinking purposes, such as for making tea.

Tetsubin are traditionally heated over charcoal. In the Japanese art of chanoyu, the special portable brazier for this is the . (See list of Japanese tea ceremony equipment). Tetsubin are often elaborately decorated with relief designs on the outside. They range widely in size, and many have unusual shapes, making them popular with collectors. A relatively small tetsubin may hold around 0.5 litres of water; large ones may hold around 5 litres.