Forge a Gyuto Knife with a Master Blacksmith Near Tokyo and Explore Japan’s Legacy of Bladework

How Japan’s Blacksmiths Adapted to the Modern Era

From Tokyo, access is easy to Yamakawa’s workshop, which is located just east of the capital near the city of Kashiwa in Chiba prefecture. After you arrive, Yamakawa will begin with a brief explanation of the history of Japanese smithery. While this tradition extends back well over a thousand years, Yamakawa’s story begins in the mid-eighteenth century, as Japan was adapting to new ideas, technologies, and preferences from around the world. At this time, skilled Japanese blacksmiths in Tokyo and the surrounding Kanto region began to transition into making Western-style knives.

It was not until after World War II, however, as Western cuisine became more widespread, that Western-style knives such as the versatile Kanto gyuto knife grew in popularity. Gyuto were crafted at first by hand by Kanto’s many master blacksmiths, but as demand began to outstrip supply, mass production took over. Seeing the consequent decline of blacksmiths, Yamakawa’s father founded Goko Hamono in Chiba with the hope of preserving and nurturing this unique Japanese metalworking tradition.

At first, Goko Hamono functioned as a wholesaler, helping individual artisans find customers for their exquisitely handcrafted gyuto knives. Yamakawa also began making his own knives alongside his father, carrying on a tradition passed down by the legendary blacksmith Morinaga Seki. No two are ever exactly the same, with every knife from his forge becoming more than just a tool— a cherished personal possession.

Cutting and Shaping the Metal

Feeling informed about the history of gyuto knives, you will be intrigued to find out more about how they are made. As a craftsman at heart, Yamakawa believes that the best way to learn is to do it yourself. After you have changed into work clothes, he will guide you through the initial steps. First, you trace the blade of the future knife onto a piece of metal, then use chisels and other tools to cut out a rough shape. Steel is the conventional material used, but you may change this to stainless steel if you wish (additional fees apply).

*Be sure to bring clothes and shoes that you don’t mind getting dirty. Please wear long pants, a long-sleeved shirt, and close-toed shoes (no sandals). Rental wear is available, but sizes are limited.

You then move to a machine with rotating grindstone that is sprinkled with water to avoid overheating the steel. This grinder brings the knife much closer to its intended shape. A large vertical drill is then used to put holes in the blade, which will later be used to attach the handle. Prior to forging, Yamakawa will ask you what you would like to engrave on the metal. For many centuries, Japanese blacksmiths have put their names or trademarks on knives, swords, and other blades as markers of their craftsmanship.

*Engraving is available in katakana or kanji, with inscriptions limited to approximately five characters.

Out of the Clay and Into the Fire

Before your blade can be plunged into the flames of the forge, you need to put it through doronuri. This mysterious process involves coating the metal with a mud-clay mixture, which helps to improve the durability and flexibility of the knife as well as its ability to hold an edge. It is then time at last to forge your blade.

While explaining the reasons for this process, Yamakawa will show you how to heat the metal to nearly 1000°C within the forge, then plunge it into an oil bath for rapid cooling to harden the metal. To ensure that the blade is not brittle, but strong and flexible, it is reheated to temper the metal, then allowed to cool in the open air.

Applying the Finishing Touches to Your Knife

Creating a gyuto knife is not finished the moment it comes out of the forge. There is plenty left to do. The secret to finishing a blade lies in working from rough to fine, as Yamakawa will show you back at the grinder as he works the metal towards its final shape. A handheld chisel is used to correct or remove small irregularities from the surface. Once the desired result is realized, an abrasive cloth buff is used to polish the blade. Be sure to stop at the end of this stage to admire its newfound sheen.

One of the most exciting moments comes when the handle is attached to the blade. Riveting the two together does take a bit of time and patience, but when finished, it transforms the piece of metal that you have worked on for several hours into an authentic gyuto knife. To ensure that you can use it at home in your kitchen, Yamakawa will then sharpen the blade by hand with a series of whetstones – rough to fine again – until its edge is sufficiently keen, then polish it again to finish.

A Memory of Traditional Japanese Craftsmanship, Held in Your Hand Each Day

There are not many souvenirs in this world as useful as a gyuto knife. At the end of your experience with Yamakawa, you will take yours home in a box, but it will not stay there long. The gyuto is a versatile knife, perfect for slicing meat and vegetables. Its keen edge means that you can cut through without sawing or pressing, which is safer for you and better for the ingredients themselves.

But the enduring appeal of your gyuto knife goes far beyond mere utility. As a prized possession crafted alongside a master Japanese blacksmith in his workshop from start to finish, it will remind you day by day of all you learned during your day in Chiba. It might be easier to buy a mass-produced knife from a store, but forging a blade yourself like countless generations of Japanese blacksmiths is an experience that is truly priceless.