Handmade Tetsubin – Japanese Cast-Iron Teapot

Tetsubin, a traditional Japanese cast iron kettle, is a staple of Japanese tea-making. The sturdy yet elegant kettle originates from the practice of brewing and drinking sencha, a casual tea-drinking style that emerged around the mid-17th century. The rise of sencha at that time contrasted with the formal chanoyu ceremonies and represented a more personal, informal approach to tea. Ever since, the Tetsubin has evolved from a simple utility to a symbol of artistry in tea culture. 

Crafting a Tetsubin showcases the peak of Japanese craftsmanship, a skill refined over centuries. The process starts with the careful selection of materials, followed by pouring molten iron into molds. These molds can be made from clay for artisanal kettles or sand. Once cast, the interior of the Tetsubin is baked at high temperatures. That forms a thin protective layer that guards against rust and imparts a beneficial amount of iron to the water.

Cast iron is known to enhance water's flavor, giving tea a sweeter, fuller taste and highlighting the subtle notes of Japanese teas and beyond. Iron ions from the Tetsubin react with residual chlorine, neutralizing the unwanted chlorine odor. This results in smoother, sweeter water for your tea, noticeably improving both the water and tea flavor, especially for those using tap water. Moreover, the iron from the kettle adds beneficial minerals to the water. The Tetsubin thus combines practicality with tradition, enhancing the drinking experience.

This tetsubin's elongated body with flowing curves is adorned with a traditional Arare pattern ("Hailstone"). The intricacy of this design reflects the skill of the iron caster. Its 1.2 liter volume makes it sufficient for a prolonged, uninterrupted tea session. If you appreciate traditional ways, you can put it directly over an open fire for an authentic tea brewing session. And it's equally suitable to use with an induction, gas, or electric stove.

We take pride in offering tetsubins produced by a family representing the Nambu ironware tradition with a seven-generation legacy. Founded in 1848 under the name Oikawa, the makers maintained a steadfast commitment to handcrafted Tetsubins, preserving the methods and quality that have defined Nambu ironware for centuries.  They became synonymous with excellence in ironware craftsmanship. Their Tetsubins are entirely handmade, reflecting a dedication to traditional practices passed down within the family, starting from their establishment more than 150 years ago and continuing to their modern-day acclaim. 

Nambu ironware dates back over 900 years and has been declared a national intangible cultural skill. It stands among the finest examples of Japanese cast iron craftsmanship. The production of Tetsubins under the Nambu banner involves adherence to historical techniques and a continuous respect for the craft as a cultural heritage. Our Tetsubin embodies this legacy, featuring a design that honors ancient craftsmanship and meets the highest quality standards. This kettle is a piece of Japan's rich cultural history crafted with skill and care that has been honed over generations.

NOTE: Please read our article on how to care for your Japanese tea kettle