Mercer Genesis 7-inch Usuba

Mercer calls this Genesis vegetable knife an usuba: a rectangular, flat-edged blade for straight push cuts, julienne and fine slicing of vegetables. Unlike a traditional single-bevel usuba, it is ground on both sides, so it works in either hand and sharpens like a Western knife.

The forged blade has the weight to move through squash and cabbage, and the tall face gives the knuckles room and scoops vegetables off the board. The Santoprene handle grips when wet.


Usuba or Nakiri?

The Genesis 7-inch Hollow Edge Nakiri adds hollows that help starchy slices release.

SKU: M20907

Availability: In stock

$64.10
  • Details

    Specifications

    • Blade length: 7 inches (17.8 cm)
    • Construction: precision forged high-carbon German steel
    • Handle: Santoprene, with a non-slip grip that holds when wet
    • Hardness: 56 ± 1 HRC
    • Edge: taper-ground on both sides, 15 degrees
    • Certification: NSF
    • Country of manufacture: Taiwan
    • Item number: M20907
    • Warranty: Mercer limited lifetime warranty (25 years for corporate users)

    Comparing Mercer Santoku and Vegetable Knives

    KnifeLineBladeBest suited to
    Genesis 7-inch Granton Edge SantokuGenesis7 in., granton edgePush cuts, forged weight
    Renaissance 7-inch Granton Edge SantokuRenaissance7 in., granton edgePush cuts, riveted handle
    Millennia 7-inch Granton Edge SantokuMillennia7 in., granton edgeA light santoku
    Genesis 7-inch Hollow Edge NakiriGenesis7 in., hollow edgeVegetables that stick
    Genesis 7-inch UsubaGenesis7 in.Straight push cuts through vegetables

    Choosing a Mercer Line

    LineConstructionSteel and hardnessHandle
    GenesisForged, with a bolsterHigh-carbon German, 56 ± 1 HRCSantoprene, non-slip when wet
    RenaissanceForged, short bolster, full tangHigh-carbon German, 56 ± 1 HRCTriple-riveted Delrin
    MillenniaStampedHigh-carbon Japanese, 53 to 54 HRCSantoprene and polypropylene, finger guard
    Ultimate WhiteStampedHigh-carbon Japanese, 53 to 54 HRCWhite polypropylene, finger guard
    BPXStamped, ice-hardenedHigh-carbon German, 57 to 58 HRCGlass-reinforced nylon, finger guard

    Care

    • Wash by hand after each use with warm water and a mild soap, then dry with a soft towel. Mercer advises against the dishwasher: heat can break down the handle, and caustic detergent can stain and pit the blade.
    • Do not leave the knife soaking. If chlorine or bleach touches the blade, rinse it off at once.
    • Avoid long contact with aluminum pans or a stainless steel sink, and do not leave the knife standing in condiments held in metal pans. Prolonged contact can cause pitting.
    • Store the knife in a block, on a magnetic bar or in a knife guard.

    Additional Info

    Blade Length (Inches) 7 in.
    Blade Length (mm) No
    Blade Width (inches) 2
    Grind 50/50 Bevel
    Steel Type X50CrMoV15
    Rockwell Hardness 56
    Stainless Yes
    Handle Material Santoprene
    Spine Thickness (mm) 2.6
    Brand Mercer
    Country of Manufacture Taiwan
    SKU M20907
    Manufacturer's Part Number M20907
    Manufacturer's Suggested Retail Price $108.22

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