Sakai City, Osaka Prefecture — documented knife production since 14th century, current tradition from 16th century
Sakai City in Osaka Prefecture has produced Japan's finest hand-forged kitchen knives for over 600 years, beginning with the importation of tobacco-cutting blade techniques from Portugal in the 16th century and evolving into the center of professional Japanese kitchen knife production supplying approximately 90% of knives used by Japanese sushi chefs and kaiseki cooks. Sakai knives are distinguished by their single-bevel (kataba) construction — a flat back face and hollow-ground chisel edge — which allows the extreme sharpness and clean slicing action demanded by professional sashimi and sushi preparation. The production process involves several specialist artisans: the jigane smith who hammers and shapes the soft iron body (jigane), the forge welder who attaches the hard hagane steel cutting edge, the sharpener who grinds the initial geometry, and finally the handle setter. This division of labor allows each craftsperson to specialize in a single phase, producing higher quality than a single-person generalist approach. Key Sakai knife styles include yanagiba (long-bladed sashimi), deba (heavy fish butchery), usuba (thin vegetable), and takohiki (rectangular-tipped octopus slicing).
Not a flavor element — but single-bevel construction enables cellular precision cuts that minimize protein fiber compression, producing cleaner surfaces that reflect light and absorb soy sauce more uniformly
{"Single-bevel kataba construction essential for clean Japanese slicing — one flat face, one hollow-ground bevel","Jigane (soft iron) body provides flexibility and ease of sharpening; hagane (hard steel) edge holds sharpness","Traditional division of labor across multiple specialist artisans produces superior outcome to generalist approach","Kasumi (mist) finish — visible boundary between jigane and hagane on blade face — is quality indicator","Specific styles (yanagiba, deba, usuba) are purpose-built with non-interchangeable geometries","Right-hand specific single-bevel construction — left-hand versions require special order and higher cost"}
{"Masamoto and Sakai Kikumori are benchmark Sakai manufacturers — available direct from Sakai dealers","Carbon high-carbon (hagane) steel edges sharpen more readily than stainless but require immediate drying and light oiling","New Sakai knives require initial sharpening (togi oroshi) before use — factory grind is never the final edge","Knife handle replacement (tsunagi) extends working life indefinitely — traditional Japanese knives are fully rebuildable"}
{"Using whetstone at wrong angle for single-bevel knives — flat back must remain flat; convex grinding destroys edge","Washing single-bevel carbon steel knives in dishwasher — carbon steel oxidizes immediately","Using single-bevel yanagiba for push-cutting — it is specifically designed for pulling draw cuts only","Purchasing replicas manufactured outside Sakai City claiming Sakai designation"}
The Japanese Kitchen - Hiroko Shimbo