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Tsukiji Masamoto White Steel 1 Usuba 210mm (8.2")

81514

Kasumi knives like this usuba 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. Its sharp and exceptionally thin edge lets cooks slice through hard vegetables such as carrots. The usuba is an ideal knife for fine dicing and julienne and brunoise slicing. In Japan's Kanto region (Tokyo), the usuba has a square tip, while in the Kansai region (Osaka and Kyoto), this knife comes with a rounded tip and is referred to as the kamagata usuba. Both styles cut in the same manner. The usuba is used for katsuramuki, a fundamental Japanese chefs' technique to cut paper thin sheets of vegetables (like daikon).

Details

Style: Usuba
Special Feature: Kasumi
Blade Steel Type: Shiro-ko (White Steel 1)
Handle material: (Hō) Japanese Magnolia
Bolster material: Water Buffalo Horn
HRC: 62-63
Bevel Angle Ratio: Single bevel
Length: 210mm (8.2")
Weight: 9.1 oz
No Saya Cover.

Care

Carbon steel knives will rust if not maintained properly. Use the Tsukiji Masamoto Rust Remover or Sabitohru Rust Remover to clean oxidized blades.

Additional Info.

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.