![]() ![]() Here is an overview of Iwachu’s process to make its teapots. They are coated with enamel on the inside to prevent rust. The process of making cast iron teapots is somewhat different for Tetsubins. The Artisan is very carefully removing a clay mold. The kettle is finally polished with green tea and vinegar to give a glossy finish. Before applying, lacquer on the surface of the kettle.Ī black patina called Ohaguro is applied to the outside at about 100☌ to 150☌. The kiln heats the iron kettle to about 250° C. The kettle then undergoes heat treatment in a kiln The cast iron solidifies, and the artisans release the iron from the inner and outer molds. Workers use a tool called a Yugumi to pour the hot iron into the space between the outer mold and the inner core. Iron is melted at 1,400 ° C to 1,500 ° C in an electric furnace. Then, the workers assemble the outer mold with the inner mold. The mold is cut using a tool called a cow and applied to the grinding plate.īefore the mold dries, the pattern or design for the Tetsubin is hand-pressed into the mold. Next, the drawing is copied to an iron plate about 1.5 mm thick.Īrtisans combine a mixture of sand and clay to make a mold for the Tetsubin. How D o Iwachu Make Their Cast Iron Kettles? He is coloring the Tetsubin with a plant-based lacquer called Ohaguro. Today, Iwachu remains one of Japan’s most respected ironware brands, producing over 1,000,000 products annually. The two of them worked together to keep the Iwachu brand going strong well into the future. Sueyoshi’s second son, Takiji, had a cheerful spirit and a keen business sense. The eldest son, Yukichi, who began helping the family business when he was 12, inherited his father’s craftsmanship. Eventually, Sueyoshi’s two eldest sons took over the business. Nevertheless, Sueyoshi prevailed and kept the Iwachu brand alive. Sadly, many older pieces of ironware were taken and repurposed during this time. War ceased production as resources were scarce. Sueyoshi faced many challenges when it came to making Nambu ironware. After years of study, Sueyoshi became one of the most skilled Nambu craftsmen in the region. He learned all about making high-quality Nambu Ironware during his apprenticeship. The Founder Of Iwachu CastingsĪt a very young age, Sueyoshi loved the charm of Nambu Ironware and became an apprentice in a local foundry. Here is a festival in the city of Morioka. If you want to learn more about Nanbu Tekki and the 900-year-old industry, click the link. Iwate is the largest region in Japan, producing cast-ironware called Nambu or Nanbu Tekki, depending on the translation. The Iwachu brand was founded in 1902 by Sueyoshi Iwashimizu in Iwate, Japan. ![]() Iwachu is best known for its range of teapots.īut they also have a beautiful selection of brightly colored teapots and a line of cast-iron cookware. The foundry is a big operation the company makes most products using green sand-casting. A Japanese company headquartered in Singapore.Ĥ0 Jln Pemimpin, #04-11 Tat Ann Building, Iwachu was founded in 1902 by Sueyoshi Iwashimizu It is the location of one of the two most prominent cast-iron regions in Japan. Great care is taken not to damage the mold. Foundry worker gently removing a clay mold.
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