Masamoto Hon-Kasumi Shirogami Steel Usuba Urushi Saya


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Handle: Sea Snail shell on Roiro Urushi octagonal handle with Nashiji nuri finish

Saya: translucent amber Suki Urushi

The Masamoto KS series kitchen knives use Japanese Shirogami steel (HRC 62-63) as the core, forged with soft iron. The super high sharpness and toughness of Shirogami steel (white steel) create a blade that is both incredibly sharp and durable, while also easy to sharpen.

These features make this series ideal for professionals who prefer to keep their knives at an exceptionally sharp edge.

The blade tip of the sickle-shaped Usuba is curved, similar to the shape of a sickle. The Usuba is a single-beveled blade, and due to its straight design with a sharp edge, it is ideal for peeling and finely slicing radishes.

The blade edge is thin, resulting in clean and smooth cuts, enhancing the slicing experience. However, due to the delicate nature of the blade, caution is advised when using it to cut hard fruits and vegetables like pumpkins, as it may damage the blade and cause nicks.

Founded by the first generation "Minosuke Matsuzawa" in the late Edo period, Masamoto Knives have been dedicated to honing the art of culinary knife craftsmanship through six generations of effort.

Since its inception, Masamoto has tirelessly pursued excellence in both technical skill and consistent product management—a legacy established by the founder.

Today, Masamoto proudly offers handmade kitchen knives of the highest quality and unwavering quality control, setting a standard that is hard for others to match. We hope you enjoy the unparalleled kitchen knives from Masamoto!

How to Maintain High Carbon Steel Knives

After use, simply wipe the knives dry. Please do not use a dishwasher to clean the knives. If you plan not to use the knives for an extended period, be sure to apply a thin layer of protective oil.

In the case of rust on the blade, you can use a rust eraser or a special 3M scrubber (only suitable for matte-finish knives). If there is minor rust on the mirror-finished parts, use rust removal paste and make sure to thoroughly remove any remaining residue with a Cleaning Naphtha to eliminate all chemical remnants from the blade.

Please use the knives for their intended purpose. Different knives are designed for slicing, chopping, or handling frozen foods. Do not use them for purposes beyond their intended use to avoid damaging the knives.

We highly recommend using EDCI's high-tech rust prevention spray to maintain your high carbon steel knives. EDCI rust prevention spray is made in the USA, non-toxic, environmentally friendly, poses no harm to the environment, and is non-flammable.

It is also a food-grade rust prevention spray, suitable for knives made of any type of steel. After spraying, it automatically forms a protective layer, and it can be used directly for cutting food without contaminating it. Users no longer need to worry about rust on their high carbon steel knives. EDCI is a game-changer for high carbon steel knife maintenance!

SKU: MMUS225KS0722