Japanese Fish Knife (Deba) — The traditional tool for expert cutting

The Deba knife is an icon of Japanese cutlery, specially designed for preparing whole fish. Robust, thick, and equipped with a one-sided cutting edge (kataba), it allows you to precisely fillet fish, slice heads cleanly, and follow bones effortlessly. It's the ideal tool for cooks who want to respect the structure of the fish while maximizing yield.

At Stay Sharp , we select Deba knives hand-forged by Japanese artisans, using high-end steels such as Aogami or Shirogami, to guarantee a long-lasting edge and perfect control with every move.

A blade designed for fish, down to the smallest detail

The Deba's design is specifically adapted to cutting whole fish. Its short, wide, and thick blade offers both power and precision, divided into three complementary zones:

• The heel : wide and solid, perfect for cutting hard parts like the head or tail of the fish.

• The central curve : allows you to slide smoothly along the backbone, to lift the fillets without tearing the flesh.

• The tip : fine and sharp, ideal for delicately penetrating the flesh and following the contours of the bone with extreme precision.

This type of blade is often combined with an asymmetrical grind, providing excellent control and a clean cut without crushing the delicate texture of the fish.

Japanese tradition and modern performance

Although the Deba is sometimes used for small poultry or game, its specialty remains cutting fish. For other types of bone-in meat, a Honesuki or Garasuki would be more appropriate. The Deba excels when used for its original purpose: working fish with care, respect, and efficiency.

Created in the Edo period to meet the needs of fishmongers and chefs, the Deba knife has established itself as a pillar of Japanese cuisine. Even today, it remains the go-to tool for preparing fish in professional kitchens and at home.

Why choose a Deba knife from Stay Sharp?

Every Deba we offer is the result of rigorous craftsmanship. Forged, sharpened and assembled in Japan, it combines tradition, durability and performance , for an incomparable cutting experience.

Do you regularly work with whole fish? The Deba is a must-have investment.

Are you just starting out? We'll help you choose the right size, steel, and sharpening angle for your skill level and needs.