Hinokuni White #1 Kurouchi Bunka 180mm

Overview

The Hinokuni Shiro Kuro Shirogami #1 Kurouchi Bunka 180mm is a rustic, hand-forged Japanese all-purpose knife made for cooks who want carbon steel sharpness, easy sharpening, and real blacksmith character. Forged by Yukihiro Sakai of Kumamoto, Japan, this bunka combines a reactive White #1 carbon steel core with soft iron cladding and a traditional kurouchi blacksmith finish.

The 180mm bunka profile is one of the most useful shapes in a Japanese kitchen knife lineup. It has enough length for daily prep, a flatter edge for push cutting, and a pointed reverse tanto tip for detail work. Use it for vegetables, herbs, boneless proteins, garlic, shallots, and general board work. Compared with a gyuto, this bunka feels compact and controlled; compared with a santoku, the sharper K-tip gives better precision at the front of the blade.

Shirogami #1, also called White #1 steel, is loved because it can take an extremely fine edge and is very responsive on sharpening stones. This is a fully reactive carbon steel knife, so it will patina with use and needs to be washed and dried immediately after cooking. For cooks who enjoy traditional Japanese knives, that reactivity is part of the appeal: the blade develops its own character over time while rewarding good technique with excellent cutting feel.

Common Questions

Q: What is the Hinokuni Shiro Kuro Bunka best used for?

A: This knife is best for everyday prep: slicing vegetables, chopping herbs, cutting onions, trimming boneless meats, and handling smaller precision tasks with the pointed K-tip. It is not designed for bones, frozen food, hard squash stems, or twisting through dense ingredients.

Q: Is Shirogami #1 easy to maintain?

A: Shirogami #1 is easy to sharpen but requires careful cleaning. Wipe the blade during longer prep sessions, wash by hand only, and dry it immediately after use. For longer storage or humid kitchens, a light coat of 100% pure tsubaki oil helps protect the reactive carbon steel and iron cladding.

Q: Is this a good Japanese knife for home cooks?

A: Yes, if the home cook understands carbon steel care. The Hinokuni Bunka is a great choice for someone who wants a handmade Japanese knife with strong cutting performance, traditional steel, and a rustic kurouchi finish without jumping into a much higher price point.

Q: How do I keep the edge sharp?

A: Use a soft, knife-friendly cutting board and avoid scraping the edge sideways on the board. Light stropping on the Tokushu Knife Premium XL Buffalo Leather Strop can help maintain the edge between sharpening sessions. When it needs a full reset, our knife sharpening service is a good option for keeping the geometry performing properly.

Specifications

• Brand/Blacksmith: Hinokuni / Yukihiro Sakai
• Knife Type: Bunka
• Core Steel: Shirogami #1 / White #1 Carbon Steel
• Cladding Type: Iron Clad
• Construction: San Mai, Hammer Forged
• Finish: Kurouchi
• Blade Length: 180mm
• Overall Length: 320mm
• Blade Height: 49mm
• Spine Thickness (Heel): 3.5mm
• Weight: Approximately 183g
• Handle Material: Oval Cherry or Oak Wa Handle with Black Plastic Ferrule
• Hardness (HRC): 63 HRC
• Edge/Bevel: Double Bevel
• Country of Origin: Kumamoto, Japan