
Gyuto & JapaneseMasamoto
Masamoto Gyuto 240mm Chef Knife
Whetstone scoreEditorial rating from spec, steel and build analysis. Not a customer rating.
The Masamoto Gyuto 240mm is a benchmark Japanese chef knife for serious home cooks and professionals who want traditional craftsmanship paired with razor-sharp, precise cutting performance.
- SteelHongasumi carbon
- Blade9.45 in
- Weight170g
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The verdict
The Masamoto Gyuto 240mm is a benchmark Japanese chef knife for serious home cooks and professionals who want traditional craftsmanship paired with razor-sharp, precise cutting performance. It demands proper carbon steel care, but rewards that attention with unmatched sharpness and a refined, balanced feel that's hard to find elsewhere.
Spec sheet
Specifications
Blade length
9.45in / 240 mm
Steel family
Carbon steels (Aogami, Shirogami)
Aogami (blue), Shirogami (white) and French XC90 carbon steels take the keenest edge of all and sharpen in minutes on a stone.
Upkeep
- Blade Length
- 240mm
- Blade Material
- Hongasumi carbon steel
- Handle Material
- Magnolia wood with buffalo horn ferrule
- Blade Thickness (spine)
- 2.2mm
- Weight
- 170g
- Category
- Gyuto & Japanese-Style
- Maker
- Masamoto
Trade-offs
Pros & cons
What we like
- Exceptional edge retention and sharpness out of the box
- Lightweight, well-balanced for long prep sessions
- Thin blade geometry glides through vegetables and proteins
- Beautiful traditional craftsmanship and finish
- Takes an extremely fine edge on whetstones
What to know
- Carbon steel requires diligent drying and oiling to prevent rust
- Not dishwasher safe
- Single-bevel edge has a learning curve for Western-trained cooks
- Premium price point
- Handle shape may feel unfamiliar to first-time wa-handle users
Highlights
What stands out
- 01240mm high-carbon steel blade
- 02Traditional Japanese single-bevel wa-handle construction
- 03Hand-forged by Masamoto artisans in Tokyo
- 04Hongasumi (reactive carbon steel) blade core
- 05Magnolia wood handle with buffalo horn ferrule
- 06Thin profile for precision slicing and push cuts
In depth
Full review
The Masamoto Gyuto 240mm Chef Knife stands as one of the most respected blades to emerge from Japan's storied cutlery tradition, carrying the weight of a brand that has been forging kitchen knives since 1872. This gyuto, with its generous 240mm blade length, bridges the gap between traditional Japanese single-bevel knives and Western-style chef knives, offering a double-bevel edge that suits both professional chefs and serious home cooks who demand precision in every cut. Crafted from high-carbon steel, the blade is hand-sharpened to an exceptionally fine edge, allowing it to glide through proteins, vegetables, and herbs with minimal resistance while preserving the integrity and texture of whatever is being sliced. The high-carbon construction means the knife takes an edge sharper than most stainless alternatives, rewarding the user with cleaner cuts and finer slices that matter when presentation and texture are part of the culinary craft.
Balance and control define the handling experience of this knife, as the 240mm length provides ample reach for breaking down larger cuts of meat or processing bigger vegetables like squash and cabbage, while the blade's thin profile keeps it nimble enough for more delicate tasks such as filleting fish or julienning scallions. The traditional wa-handle, often fashioned from magnolia wood with a buffalo horn ferrule, keeps the overall weight light and the balance point close to the blade, which reduces fatigue during long prep sessions and gives the user a more intuitive feel for the cutting edge compared to heavier Western-handled knives. This design philosophy reflects the Masamoto workshop's dedication to function over ornamentation, producing a tool that feels like an extension of the hand rather than a separate implement to be wielded.
Because the blade is high-carbon steel rather than stainless, it demands a level of care that rewards attentive owners: thorough drying after each use, occasional applications of oil during storage, and honing on whetstones rather than pull-through sharpeners to maintain its keen edge. Patina will naturally develop on the carbon steel over time, a cosmetic change that many cooks come to appreciate as a mark of the knife's working history rather than a flaw. For chefs who prioritize razor-sharp performance, fine control, and the tactile feedback of a traditional Japanese gyuto, the Masamoto 240mm model offers a long-term investment in cutting quality, suited to those willing to maintain their tools with the same care and discipline the Masamoto name has represented for generations.

Ready to cut?
Masamoto Gyuto 240mm Chef Knife
Gyuto & Japanese · Hongasumi carbon · score 9.4/10



