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The Yuzo Black SLD range embodies a demanding vision of Japanese cutlery craftsmanship. Hand-forged in Japan by the Tadafusa cutlery factory in Sanjo, these knives are designed for cooks looking for durable, technical tools deeply rooted in tradition. Each model in the range features top-grade steel, an assertive rough-forged finish and noble wooden handles, for a perfect balance between performance and character.
A San Maï blade in Japanese SLD steel
Yuzo Black SLD knives are based on a San Maï structure, a traditional design composed of three layers of steel. The heart of the blade is made of SLD Japanese steel, developed by steelmaker Hitachi. Initially designed for industrial cutting of metal alloys, this steel has been adapted to cutlery for its exceptional cutting qualities and resistance to wear.
With a carbon content of around 1.6%, SLD steel achieves a high level of hardness, around 63 HRC on the Rockwell scale. This hardness guarantees a long-lasting, precise cutting edge, while retaining good sharpening properties. Chromium, present at around 13%, improves corrosion resistance, although this steel is still considered oxidizable and requires careful maintenance.
The SLD core is covered by a layer of softer stainless steel, designed to protect the core and balance the blade. This structure provides increased resistance to micro-shocks, without making the blade flexible. The homogeneous micro-structure of the steel, with finely distributed carbides, further enhances the durability and stability of the cutting edge.
A forged finish with a strong character
The Yuzo Black SLD range is visually distinguished by its rough-forged finish. The blades are deliberately unpolished to preserve their dark, authentic and traditional appearance. This finish emphasizes the craftsmanship of the blacksmith and gives each knife a strong identity.
The surface of the blade is enriched by hammering in a criss-cross pattern. Beyond its singular aesthetics, this hammering accentuates the artisanal character of the range and recalls ancestral Japanese forging techniques. Each blade features subtle variations, making each knife unique.
Ebony handles designed for durability
Yuzo Black SLD knives feature ebony handles, a dense wood renowned for its resistance to intensive use. Ebony is highly resistant to humidity and temperature variations, making it a particularly good choice for kitchen use. Its deep shades, sometimes interspersed with warmer nuances, reinforce the range's elegant, sober character.
The octagonal shape of the handles ensures a comfortable and secure grip, suitable for both right- and left-handed cooks. A darker ebony bolster reinforces the visual continuity of the handle, while a central ring of quince wood adds a touch of contrast. This sturdy, stable light-colored wood is framed by two white micarta edgings for a precise, balanced finish.
To ensure a watertight seal, wood paste is applied to the junction between blade and handle. This finish prevents moisture and food residues from seeping in, while enhancing the knife's durability.
A handcrafted range for demanding users
The Yuzo Black SLD range is aimed at passionate cooks looking for handcrafted knives with a strong personality. Each model is forged in small series, using traditional craftsmanship, which means limited availability and variable restocking. These knives are designed to deliver high cutting performance, while requiring careful maintenance commensurate with the materials used.
Yuzo Black SLD knives embody an authentic approach to Japanese cutlery, where technique, materials and craftsmanship take precedence over standardization. They are the ideal choice for those who wish to work with a tool of character, designed to last and evolve over time.
