Japanese Cutlery: A Practical Guide

A reference for people buying, using, and maintaining Japanese kitchen knives. It assumes you are past the "which brand is best" stage and want to understand what actually differs between one knife and another.

How this guide is organized

Choosing a knife covers the things that determine how a knife performs: blade shape, steel, grind, heat treatment, construction, finish, and handle. Read Grinds and Heat Treatment first if you read nothing else, because those two decide more about a knife than the steel name on the spine does.

Who makes them is organized by region, because region still predicts a great deal about how a knife is built. Sakai runs on division of labor, so a Sakai knife is usually a smith plus a sharpener plus a house, and you will find those three filed separately. Sanjo, Echizen, and Tosa workshops more often do everything under one roof, so one entry covers the knife.

Sharpening and Buying are practical. Reference holds the glossary.

What this guide is and is not

It is a compilation, written from maker sites, specialist retailers, and community sources, and checked where checking was possible. Where something is contested, it says so. Where a claim rests on a single retailer page or a forum post, it says that too.

It is not a review site, it does not rank makers, and it takes no position on which knife you should buy. It is free, non-commercial, and carries no affiliate links.

Where the information came from

Nothing here is original research. This guide is a compilation, and the sources are worth naming.

Maker histories, lineages, and specifications come mostly from the craftsmen's and workshops' own pages, and from specialist retailers who publish real detail rather than marketing copy: Knifewear, Knives and Stones, Bernal Cutlery, Japanese Knife Imports, Carbon Knife Co, Chef Knives To Go, Tosho Knife Arts, Hitohira, Cutting Edge Knives, CleanCut, SharpEdge, Seisuke Knife, Hocho-Knife, and others named on the relevant pages. Technical material on steel and heat treatment draws heavily on Knife Steel Nerds and on manufacturer datasheets. Community sources, mainly Kitchen Knife Forums, ChefKnivesToGo Forums, and r/TrueChefKnives, fill gaps where nothing else is documented, and the text says when a claim rests on one.

The r/TrueChefKnives community wiki compiled by u/ole_gizzard_neck was also drawn on throughout.

Individual pages list their own sources at the bottom.