Japanese Knife Glossary — Gyuto, Santoku, Kiritsuke, San Mai & More

Knife Types

Gyuto 牛刀 gyū-tō: A long, pointed Japanese chef's knife (210–270mm), literally meaning beef sword. The Japanese equivalent of the Western chef knife. Thin, versatile, and precise — used for meat, fish, and vegetables. The standard workhorse knife of professional Japanese kitchens. See our gyuto vs santoku vs kiritsuke comparison.
Santoku 三徳 san-to-ku: A shorter Japanese kitchen knife (165–180mm) meaning three virtues — for meat, fish, and vegetables. Characterized by a rounded sheep's foot tip and a flat cutting profile suited to push-cutting. The most common home kitchen knife in Japan and an excellent first Japanese knife for home cooks.
Kiritsuke 切付 ki-ri-tsu-ke: A long Japanese knife with a distinctive angled k-tip, combining elements of the yanagiba slicer and the usuba vegetable knife. Traditionally single-bevel and carried only by head chefs in professional kitchens. Modern double-bevel kiritsukes are accessible to experienced home cooks. The name means roughly cutting attachment.
Yanagiba 柳刃 ya-na-gi-ba: A long, slender single-bevel knife meaning willow blade. The primary tool for slicing sashimi and sushi rolls. Lengths typically 270–330mm. Its single-bevel grind allows thin, clean cuts through delicate fish without tearing. The long blade enables a single drawing stroke across a piece of fish rather than a sawing motion.
Deba 出刃 de-ba: A heavy, single-bevel knife designed for breaking down whole fish — cutting through bones, spine, and cartilage. The thick spine and robust heel can manage tasks a gyuto or santoku cannot. Used by fishmongers and sushi chefs. Not a general-purpose knife; purpose-built for fish butchery.
Nakiri 菜切り na-ki-ri: A double-bevel Japanese vegetable knife with a rectangular blade and flat cutting edge. Meaning vegetable cutter. Excellent for push-cutting, pull-cutting, and full-board contact when slicing vegetables. Popular among plant-focused cooks and anyone who wants a dedicated vegetable knife.
Petty pe-ti: A small Japanese utility knife (120–180mm), the Japanese equivalent of a paring or utility knife. Thinner and more precise than its Western counterparts. Used for peeling, trimming, segmenting citrus, and small detail work. An essential second knife in any serious kitchen.

Blade Construction

San Mai 三枚 san-mai: A Japanese blade construction technique meaning three layers. A hard steel core (hagane) is forge-welded between two layers of softer steel (jigane). The hard core provides a razor edge; the softer cladding provides toughness and resilience. The construction principle behind San Mai Atelier's identity. Learn more about san mai construction.
Hagane 鋼 ha-ga-ne: The hard steel core in a san mai blade. High-carbon steel, typically 60+ HRC on the Rockwell hardness scale. Responsible for the blade's cutting edge — its sharpness and edge retention. Brittle on its own, which is why it requires the jigane cladding for protection.
Jigane 地鉄 ji-ga-ne: The softer outer steel cladding in a san mai blade. Provides toughness, shock absorption, and protection for the brittle hagane core. Often stainless or semi-stainless, making the blade more corrosion-resistant while the hard core handles the edge work.
Hamon 刃文 ha-mon: The visible line along a blade marking the boundary between differently hardened steel. In traditional sword-making, the hamon is created through differential clay hardening. In san mai kitchen knives, it marks the junction of hagane and jigane. Both a technical indicator and an aesthetic element — treated by craftsmen as a canvas for design.
Kasumi 霞 ka-su-mi: The misty, cloudy finish on the flat face of a single-bevel Japanese knife, created by progressively finer whetstone polishing. Meaning mist or haze. The contrast between the bright polished bevel and the subtle kasumi is considered a hallmark of quality hand-finishing.
Shinogi 鎬 shi-no-gi: The ridge line on a Japanese blade separating the flat face from the ground bevel. The height and angle of the shinogi determines the blade's geometry and performance — a critical variable that master craftsmen adjust with intention.

Culture & Nature

Sakura 桜 sa-ku-ra: Cherry blossom. One of the most iconic symbols in Japanese culture. The sakura's brief, brilliant bloom — and rapid fall — embodies the concept of mono no aware (物の哀れ): the bittersweet beauty of impermanence. The sakura season (late March to early May) is celebrated across Japan with hanami (flower viewing) gatherings. Three blossom types are commonly associated: cherry (sakura), plum (ume), and peach (momo).
Hanami 花見 ha-na-mi: Flower viewing. The centuries-old Japanese tradition of gathering beneath sakura trees during blossom season to appreciate their brief bloom. Food, drink, and company are essential components. A moment of intentional stillness in the face of passing beauty.
Mono no Aware 物の哀れ mo-no no a-wa-re: Literally the pathos of things. A Japanese aesthetic concept describing the bittersweet awareness of impermanence — the poignant beauty of things precisely because they do not last. The sakura is its most famous symbol. Deeply embedded in Japanese art, cooking, and craft.
Shokunin 職人 sho-ku-nin: Craftsman or artisan. A word that carries enormous cultural weight in Japan — implying not just technical mastery but total devotion to one's craft. A shokunin does not separate work from identity. The knife-maker, the sushi chef, the whetstone grinder: all can be shokunin. The word underpins the philosophy behind San Mai Atelier.

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The Vocabulary, Worn

T-shirts for those who know the difference between a gyuto and a kiritsuke. Minimalist chef apparel rooted in Japanese blade culture.

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