Structure & Features: Q7-Cheap Knives Often Lack Urasuki

If the video does not appear, please click the play button (▷) to watch.

Why the hollow makes all the difference.

When choosing a knife, cost can be deceiving. Many budget-friendly blades omit urasuki, the subtle hollow on the back of traditional Japanese knives that defines their sharpness, glide, and precision. Without it, knives dull quickly, stick to ingredients, and compromise the very qualities that make Japanese knives exceptional.

Urasuki reduces friction, allowing the blade to pass through food effortlessly. It prevents food from clinging, ensuring clean release in delicate tasks such as sashimi slicing or katsuramuki peeling. And during sharpening, the concave design ensures perfect contact with the whetstone, preserving a razor-sharp edge with less effort.

Far from decorative, urasuki was engineered specifically for Japanese cuisine, where precision, beauty, and texture are paramount. Its absence in cheaper knives not only affects performance but diminishes the cooking experience itself.

A fine Japanese knife is not just defined by its edge—it is defined by the unseen details, perfected over centuries. Choosing a knife with urasuki means choosing a tool built for sharpness, efficiency, and artistry.