Maker spotlight: Tsukasa Shiro Kuro | Tosa, Japan

Maker spotlight: Tsukasa Shiro Kuro | Tosa, Japan

Tsukasa Shiro Kuro

Tosa is a small town in Kōchi Prefecture with a long history of making blades. Not famous-on-the-internet long, genuinely long, going back over 400 years. The Tsukasa Shiro Kuro knives come from that tradition. They're hand-forged using the same basic methods that have always been used there, which is why they look the way they do: a little rough around the spine, honest, nothing hidden.

The name is pretty straightforward once you know the Japanese: Shiro means white (for the White Steel), Kuro means black (for the darkened, forge-finished spine). What you see is what it is.

The steel

Shirogami #1 is made by Hitachi and it's about as pure as carbon steel gets. No chromium, no vanadium, just iron and carbon, tightly controlled. That simplicity is what makes it so good to work with. It responds to a whetstone easily and gets genuinely sharp without much effort. A few minutes on a decent stone and you'll have an edge that does the job properly.

The high carbon content also means it holds that edge well, which is a nice combination: easy to sharpen, doesn't need sharpening constantly. The trade-off is that it will react with moisture and acidic foods, so you need to dry it after use and give it a light wipe of oil now and then. Not a big ask. Carbon steel knives that are looked after properly last for decades and keep getting better.

Like all reactive steels, it will develop a patina over time, a dark, uneven finish that settles across the blade with use. This is normal and actually stabilises the steel. It's part of what makes these knives interesting to use.

The handle

Oak, octagonal, nothing fancy. The eight-sided shape is a Japanese standard for good reason: it's comfortable, it doesn't roll off the bench, and you always know the orientation of the blade without having to think about it. The oak is light and open-grained. It'll absorb a little oil over time and take on some character. Keep it dry and it'll outlast the blade.

Who these are good for

If you've been wanting to try a Japanese knife but haven't known where to start, this is a solid place. The steel is the real thing. Shirogami #1 is used in knives at much higher price points, and the forging is traditional, not a factory approximation of it. You're not paying for a name or a fancy presentation box. You're paying for a well-made knife that will teach you a lot about sharpening and looking after carbon steel.

That said, if you already know your way around a whetstone and want something a bit more refined, there are other makers in the range worth looking at too. The Shiro Kuro is honest and capable, but it's built to be used and learned from, not displayed.

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