ZDP-189 Bunka Silver 190mm (7.5")

ZDP-189 Bunka was designed in harmony with our values (excellence, quality, and reliability), in line with those originating from the steadfast Japanese tradition. We also devoted special attention to certain aesthetics inspired by Japanese mysticism and a respectful attitude to tradition, nature, raw materials, the constituent elements, and the final product – in short, the quintessential values of Japanese culture.

With its typical functionality, the Bunka design is intended for versatile use in Western cuisine. It has a flexible profile that is wide enough at the handle, a gently designed belly of the blade suitable for making either long or short cuts, a flat back side of the blade, and a thin tip for precise work with food.

The knife is manufactured at the smithy of Yoshida Hamono in Japan, a family company with an age-long tradition in manufacturing state-of-the-art tools and Japanese swords, i.e. katanas, by hand. Yoshida Hamono has a great deal of experience forging ZDP-189 steel in the traditional manner. See the photo story from our visit to their smithy in 2016.

The heart of the knife is made of ZDP-189 steel, which we selected because systematic testing has proven its superior qualities and long-lasting sharpness. The steel is laminated, which entails that the core is made of very strong steel covered with an external layer of softer stainless steel. Such a blade remains sharp for a very long time, its softer external layer makes it easier to sharpen, and it also protects the core steel from external factors.

The blade is finished with a mirror polish hairline finish, which is suitable for the finest cuts. The single hairline, running along the length of the blade (just above the edge of the blade), marks the separation between the softer and the harder, core ZDP-189 steel.

Bunka Silver was fitted a traditional Japanese wooden handle, called Wa handle. The wooden handle is made of Walnut wood with an octagonal shape, so it will fit equally well into the hands of right- or left-handed users.

The steel contains as much as 3% Carbon (C), which is one of the main elements contributing strength and typically found in amounts of up to only 1% in other types of solid steel, while the Chromium (Cr) content, which prevents corrosion, amounts to nearly 20%. It also features 0.60% Tungsten (W), which considerably increases the abrasion resistance of steel, 1.4% Molybdenum (Mo), which helps to preserve the strength and power of steel under variable temperatures, and 0.10% Vanadium (V), the key element in increasing steel strength. Heat treatment produces steel with a hardness of 65-67 HRC.
ZDP-189 composition: C 3.00 % | Cr 20.00 % | W 0.60 % | Mo 1.40 % | V 0.10 % | Mn 0.50 % | Si 0.40 %

It embodies the cream of the crop as regards what one desires in a kitchen knife: the best steel, a multi-purpose profile, excellent functionality, and an attractive look. This makes it an ideal choice for anyone looking for a selection of the best properties for versatile use. Its superior qualities will excel in a professional environment with a large volume of cutting work, as well as for daily usage in your home kitchen.

The wooden knife sheath Bunka Saya, made of beech wood, was custom-made for the Bunka. Saya protects the knife when we are not using it. Saya is sold separately, you can select the option with Saya when adding the knife to your cart.