Denshiro is the brand produced by Fujiki Denshiro Shoten, a company that has been practicing kabazaiku in the town of Kakunodatemachi in Akita Prefecture since its establishment in 1851. Kabazaiku is a traditional art of making items using cherry tree bark. Only the bark is harvested from a tree's trunk so that it can regrow. The harvested bark is then thoroughly dried for 2 years before processing.
Raw cherry tree bark has a gray color and a granular surface. Once the raw bark has been scraped, the reddish-brown layer beneath is revealed. This layer is polished for increased luster, creating cherry tree bark’s characteristic color and sheen. A craftsman repeatedly scrapes and polishes each and every piece of bark, which will then be used in various products.
Layers of cherry tree bark and paper-thin wood are glued together and wrapped around a cylindrical wooden mold. Then, a highly heated iron is carefully hand-pressed on the covered mold. The resulting cylinder is cut into several pieces to form the outer and inner parts of the canister and lid. Because all parts are made from the same cylinder, the canister maintains its superior airtight properties even when humidity levels change. An airtight storage environment protects tea leaves from moisture to retain freshness of aroma and taste.