Sakai Takayuki Kasumitogi Deba

A Deba is a traditional Japanese knife specifically designed for butchery tasks, such as filleting fish and breaking down poultry. Its thick, heavy spine and single-bevel edge provide the strength needed to cut through small bones and cartilage without damaging the blade.

Yes. Yasuki white steel is a high-carbon steel that is prone to oxidation. You must hand-wash and completely dry the blade immediately after every use, and consider applying a thin layer of food-safe mineral oil if you are storing it for an extended period.

No, this is a traditional single-bevel knife designed for right-handed users. The blade geometry is ground specifically to push food away from the cut, which would be reversed and ineffective for a left-handed grip.

Kasumitogi refers to a 'mist' finish, where the blade is forged by welding a hard, high-carbon steel edge to a softer iron cladding. This construction provides the extreme sharpness of white steel while the softer cladding offers structural support and makes the blade easier to sharpen.

While it is exceptionally sharp, the Deba is not a general-purpose chef's knife. Its thick geometry is optimized for heavy-duty tasks like filleting and deboning; using it for fine vegetable slicing or delicate tasks will feel clunky and may result in uneven cuts.

Because this is a single-bevel knife, you should sharpen it using Japanese water stones. Focus on maintaining the specific angle of the primary bevel on the front side and lightly deburring the flat back side to ensure the edge remains precise and effective.