Famous Japanese kitchen knives, and the jobs they do

Japanese knives divide into two families before they divide into names. The Takefu Knife Village calls the double-bevel knife the most common home kitchen knife, with an edge on each side.¹ Its double-bevel knives are built, in basic structure, as a core steel sandwiched between a base metal of iron or stainless steel.⁸ The famous Japanese kitchen knives that Western cooks meet in shops, such as the santoku, gyuto and nakiri, belong here, and a cook switching from a European chef's knife will find them familiar.

The other family is single-bevel. A single-bevel knife has an edge on one side only, and is generally called a wabocho.² Because the edge sits on one side, right-handed and left-handed versions exist.⁷ Sakai's tourism bureau says hand-forged knives of this kind are in principle the same as Japanese swords, with a single edge, which is rare when a double edge is the norm around the world.⁹

The Embassy of Japan in Singapore describes the payoff: the acute angle of a single-edged Sakai knife cuts fish and vegetables without damaging their fibers or membranes.¹⁰ The cost is practical. You buy for your hand, and you learn to sharpen one bevel rather than both. The village teaches sharpening on a double-bevel santoku and on a single-bevel ajikiri fish knife, which makes the difference easy to feel in a lesson.¹¹

The nakiri is the vegetable cook's friend. The Takefu Knife Village describes it as an old-fashioned square knife whose wide blade feels stable when you cut large vegetables.⁴ Its flat profile means the whole edge meets the board together, which suits chopping and slicing with a straight up-and-down motion.

The usuba is the same job taken further. The village identifies it by its edge, which runs in a straight line from tip to heel.¹⁷ If you have heard the word katsuramuki, the peeling of a vegetable into a long thin sheet, you have heard of the work an usuba does.¹⁸ Sakai's official craft sheet lists the usuba as the form Sakai developed for vegetables.¹⁹

The two knives show the split between families in practice. The nakiri is double-bevel and forgiving, a knife anyone can pick up. The usuba is single-bevel and demanding, a tool that professional cooks learn over time. A home cook who wants vegetables handled well should start with the nakiri, and treat the usuba as a later step if the craft starts to matter.

The names above are only the beginning. The village notes that many more single-bevel types exist, including knives made for boning, for octopus and for shellfish.²³ Sakai's tourism bureau says its single-edged knives have different shapes depending on their use.²⁴ A shop that stocks a dozen patterns is not showing off; it is following the way Japanese kitchen work divides tasks.

Makers will also shape a knife to order. Tosa artisans can make any size or shape of blade in small production runs.²⁵ In Sakai, blades are made to a length and thickness the customer specifies, to within several millimeters.²⁶ A name on a shop shelf is therefore a starting point rather than a fixed pattern, and a smith will adjust length, weight and tip for the cook who asks.

This is also the place where the craft class makes sense. A knife you forge yourself is not a named pattern off a shelf; it is a blade you shaped and finished, and the experience of that gives the types in this guide a physical meaning. Read the booking page for what the session produces before choosing, because the listing's title names the activity, not the pattern.

A short rule of thumb works for most readers. If you cook meat, vegetables and fish at home, start with the santoku, because the village describes it as cutting all of them.³ If you mostly chop vegetables, take the nakiri.⁴ If you prepare whole fish, add a deba later.⁵ The names stop being abstract once a knife is in your hand.

If you want to feel the difference in person, there are realistic routes from Kyoto. The knife making session is a 3-hour class from $152. A 1-hour craft and sharpening workshop in Gion starts from $61. A Sakai knife maker walking tour from Osaka runs 3.5 hours from $64. Each shows a different side of the same craft.

Whatever you choose, ask the maker about the knife in your hand before leaving. Which type is it? Which steel? Which bevel? Those questions turn a souvenir into a tool you know how to use, and every answer ties back to a section of this guide.