Mercer Culinary Genesis Nakiri 7 in (M20907)

By Mercer Culinary · Kitchen Knives · Kitchen & Cooking · More from Mercer Culinary

  • High-carbon German steel, precision forged, HRC 56 ±1
  • Blade angle 15°, straight 7 in (17.8 cm) rectangular blade
  • Santoprene handle, NSF certified
  • Hand wash only

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Summary

A forged full-tang vegetable knife with a rectangular blade and Santoprene handle for home and working kitchens. Check fit before you buy: the handle bulk and balance divide users, and Mercer publishes no weight figure.

Strengths

  • Forged full-tang build carries NSF certification aimed at working kitchens.
  • Factory edge arrived only slightly behind higher-priced test knives and cut cleanly.
  • Extra weight pushes through fibrous carrots with low resistance.
  • Santoprene handle gives a secure grip that owners describe as comfortable.
  • Soft steel comes back to sharp quickly on a stone.

Weaknesses

  • Handle is bulky and not flush with the bolster, so water can sit in the crease.
  • Soft steel needs honing and sharpening more often than harder blades.
  • One owner returned the knife because the balance felt wrong for their grip.
  • Blade runs thicker behind the edge than Japanese blades, so feel stays heavy.
  • Mercer publishes no weight, total length, spine thickness, or exact steel grade.
  • Chlorine, bleach, and long soaking can discolor or pit the blade.

Verified specifications

Item numberM20907.
Blade length7 in (17.8 cm).
Profilerectangular nakiri with straight edge and blunted tip.
Blade materialHigh-Carbon German Steel.
Handle materialblack Santoprene.
Constructionprecision forged.
Tangfull tang with bolster.
CertificationNSF.
Blade angle15°.
HardnessHRC 56+/-1.
Edgesmooth taper-ground double bevel.
Carehand wash only.
Soakingnever soak or submerge for long periods.
Warrantylimited lifetime, with 25 years for corporate users.
PackagingMercer Pak.
Recommended guardM33139P wide knife guard, sold separately.
Full research notes and sources

Cutting performance

Bon Appetit ran paper, potato, carrot, and cucumber cuts plus form and cleanup checks. The factory edge sat only slightly behind the other test blades, and it handled chopping and slicing with ease. Weight helped through fibrous carrots, yet it stayed nimble on cucumber. The two complaints were handle bulk with a water-trapping crease and softer steel needing more frequent sharpening. No measured edge-retention data exists for this blade.

Handle and balance

Bon Appetit called the knife balanced despite weight and credited the bolster as a grip point. Bevel and Bone describes it as thicker behind the edge and steers thin-feel buyers elsewhere. In r/chefknives, one owner returned the knife for preferring handle-heavy or center balance. Mercer lists no weight, so expect a substantial German-weight feel rather than delicacy. If you prize light thin blades, look elsewhere.

Care and warranty

Hand wash with mild soap, rinse, and dry at once. Never use a dishwasher, soak, or leave the blade in aluminum or stainless sinks. Chlorine and bleach discolor and pit the steel. Store in a block or sheath, with the M33139P guard sold separately. Genesis knives carry a limited lifetime warranty, with 25 years for corporate users, covering defects with repair or replacement. Dullness, hard-surface cutting, frozen food, bones, cans, dishwasher damage, and normal wear are excluded. Sharpening stays your job.

Which model this is

This page covers M20907, the forged Santoprene Genesis nakiri, ASIN B000OOQZWY. Do not confuse it with M21067 Granton, M21030 Granton, M23660 Renaissance with Delrin handle, M22907 stamped Millennia, or the stamped Asian Collection nakiri. Some listings label it a usuba, but the grind here is double bevel.

Sources

Manufacturer:

Independent reviews:

Owner reports:

Dealers:

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