Complete kit
The original chef-invented knife attachment, bundled with a single-bevel Usuba. Paper-thin sheets out of the box, no separate knife purchase, no compatibility guessing.
Ships from Prague · Free EU shipping over €80 · 30-day returns
The Kappa Kanpeki clips magnetically to your knife and sets a fixed depth. You roll the vegetable into the knife. It does the rest.
1mm for tsuma, 2mm for cucumbers, 3mm for takuan. Swap wedges in seconds.
Neodymium magnets snap onto any blade 40-60mm wide. Japanese, Western, or anything between.
Hold the knife steady. Set the vegetable against the guide. Roll it into the blade. One unbroken sheet.
The Knife System bundles a Sakai-forged Usuba at less than its standalone price. Already own a knife you love? The Full Set has just the wedges and case.
Everything in the Full Set, plus a single-bevel Usuba. No compatibility guessing.
Three wedges and the carrying case. For chefs who already own a knife they trust.
The only requirement is blade width: anywhere from 40 to 60mm and the magnets clip on. That covers most Japanese single-bevels (Usuba, Yanagiba, Sashimi) and a wide range of Western chef knives. Not sure about yours? Send us a photo.
The Kappa Kanpeki started in a Prague kitchen, after one too many lost hours to cucumber prep. v1 went out to working restaurants in 2022. v2 is the version we'd build if we started from scratch - tighter tolerances, stronger magnets, better case.
It's an original invention. Registered EU Community Design on the appearance. Registered EU and US trademark on the Smart Sushi Chef name. There are v1 knockoffs out there - only Smart Sushi Chef and licensed retailers sell the genuine v2.
The KK fits any knife with a blade width between 40 and 60mm. That covers most Japanese single-bevels (Usuba, Yanagiba, Sashimi) and many Western chef knives. The only thing that matters is the width, not where the knife is from. Outside that range? Email us before ordering.
Hand-wash only. The neodymium magnets and ABS body don't tolerate dishwasher heat or aggressive detergents. A quick rinse and wipe is all it needs.
Yes - that was the design goal. The guide sets the depth, so you don't need years of katsuramuki training. If you can pull a knife in a straight line, you can produce paper-thin sheets.
Yes. Registered EU Community Design on the appearance. Registered EU and US trademark on the Smart Sushi Chef name. There are v1 knockoffs out there - only Smart Sushi Chef and licensed retailers sell the genuine v2.
With normal use, indefinitely. The magnets are sealed inside the ABS body. We've had v1 units in working restaurant kitchens since 2022 still going strong. Any defect, contact us - we replace them.
We work directly with restaurants and culinary schools. Volume pricing, Net 30, and dedicated catalogues are available - see our B2B page or email sales@smartsushichef.com.
Yes. Singles (1mm, 2mm, 3mm, 5mm) are sold separately on our site - search 'kappa wedge'. Magnets and case are user-replaceable too; ask us if you need a part.
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