Kasumi knives like this deba are produced by hand-forging high-carbon steel (white steel) with iron. The carbon steel becomes the knife's cutting edge while the iron forms the spine and body of the blade. This combination of Steel Types creates a knife that is less brittle than the honyaki-style, and easier to sharpen.
Many carbon steel knives are made using coke fuel but Tsukiji Masamoto knives are made using charcoal, which produces higher quality blades because of the gradual rather than abrupt temperature change.
Tsukiji Masamoto pays special attention in creating a deeper urasuki (concave surface of the backside) to maximize its effect. Urasuki facilitates clean food separation from the blade, just like hollowed or perforated knives. This is why you can perform uraoshi (sharpening the backside of a single bevel knife to keep the outer edges leveled) on a coarse stone, unlike most other brands.
Carbon steel blades like this kasumi require more delicate handling and care than stain-resistant knives, but are sharper. Kasumi knives are the standard blade of Japanese chefs. The sharpness and weight of this durable thick blade lets you glide the knife along fish bones to separate the fillets, as well as cut through fish heads, fish ribs, even poultry.
Style : Deba
Special Feature : Kasumi
Blade Steel Type : Shiro-ko (White Steel 2)
Handle material : (Hō) Japanese Magnolia
Bolster material : Water Buffalo Horn
HRC : 63-64
Bevel Angle Ratio : Single bevel
No Saya Cover.
Blade Length: 150mm (5.9")
Weight: 6.88 oz
Please be aware that these knife handles are made using water buffalo horn which is a natural material. We make no guarantee and do not take requests as to the color or patterning of the buffalo horn. It may be solid black, blonde or a mixture thereof. Thank you for understanding.