An authentic iron kettle with a copper lid.
The words "Ichiryū Manbai" (一粒万倍) are inscribed on this cast iron kettle. Ichiryū Manbai is a traditional Japanese concept symbolizing the belief that a single seed can multiply into ten thousand, representing abundance, prosperity, and the power of small beginnings.
Tetsubin has a 400-year history rooted in the Japanese Tea Ceremony and is valued worldwide for its elegant craftsmanship and its ability to enhance the flavor of water—making tea taste richer, milder, and smoother. It also releases trace amounts of iron into the water, offering health benefits, especially for those with low iron levels.
Unlike mass-produced kettles made of stainless steel, each Tetsubin is a sustainable, heirloom-quality item crafted by skilled artisans.
With proper care, it can be passed down through generations.
Many people are unaware of the difference between enamel-coated iron teapots (often called Kyusu) and traditional Tetsubin kettles.
Most modern cast iron teapots are coated with enamel on the inside, which makes them suitable for brewing tea—but not for boiling water.
In contrast, this authentic Tetsubin is uncoated, allowing the water to interact with the iron, enhancing its flavor and mineral content.
W 15 cm x H 10 cm / 20 cm
Full Capacity: 1,150 ml
Practical Capacity: approx. 930 ml
Weight : 1,524g
Good vintage condition ★★★☆☆