Kiritsuke Knife 21 cm - Bunka San-Mai Collection
Kiritsuke Knife 21 cm - Bunka San-Mai Collection
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MAINTENANCE AND SHARPENING GUIDE
90-Day Money-Back Guarantee
International Lifetime Warranty
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DESCRIPTION
DESCRIPTION
The Kiritsuke is the Japanese equivalent of the French chef’s knife, capable of cutting everything except bones and frozen foods.
Kiritsuke knives are recognizable by their angular and inverted blade profile (inverted Tanto profile), which provides greater precision than a traditional rounded profile.
○ Handmade
○ Three-layer Japanese AUS-10 stainless steel
○ Full tang
○ Ebony handle
○ Hardness (HRC): 61 +/- 1
○ Weight: 190 g
○ 21 cm blade, 33 cm total length
○ Perfectly balanced
○ Bamboo saya (sheath) included with each knife
○ Lifetime warranty
SPECIFICATIONS
SPECIFICATIONS
Blade length / Total length: 21 cm (8.3") / 33 cm (13")
Blade Material: AUS-10 high-carbon stainless steel
Blade Type: Double bevel
Weight: 190 g (6.7 oz)
Blade Hardness: HRC 61 +/- 1
Thickness At The Spine: 1.8 mm
Steel Heat Treatment: Cryogenic
Blade Angle: 15˚, 50/50 symmetrical grind
Handle Material: Ebony
MAINTENANCE
MAINTENANCE
• Do not cut: on hard surfaces (metal, ceramic, marble), bones or frozen foods
• Hand wash (dishwasher not recommended)
• Dry quickly after use

CHARACTERISTICS
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Rediscover Cooking
Rediscover the art of cooking with KOTAI knives. Experience the sharpness and precision of handcrafted blades made from the finest materials. Elevate your culinary creations to new heights with the perfect combination of tradition and modern innovation.
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Lasting Performance
At its core, a high-carbon AUS-10 steel—hardened to reach HRC 61—gives the blade exceptional sharpness and long-lasting edge retention.
On each side of the edge, two softer layers of steel protect this hard core, increasing the blade’s resistance to shocks and oxidation. -
Ergonomically Engineered
The perfect weight distribution and hand-polished ebony handle have been designed for you to cut effortlessly through the toughest food without compromising on comfort.
The Experts' Opinion
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Robert Fontana
"Des experts en couteaux au service d'experts en gastronomie."
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Philippe Colinet
"Le manche tient bien dans la main et est bien équilibré. J'adore le motif martelé à la main sur la lame. Excellent travail."
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Matthieu Pasgrimaud
"KOTAI est une marque qui élève votre parcours culinaire en vous offrant une meilleure expérience de coupe."
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Thibaut Gamba
"Un couteau puissant, mais très confortable et précis. Je l'ai toujours à côté de moi."
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Francesco Arena
"Je suis sans voix ! Le couteau est spectaculaire !"
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Romain Casas & Tiphaine Mollard
"Nous sommes agréablement surpris par KOTAI depuis que nous l'avons adopté. Ce sont d'excellents outils pour un usage quotidien."
HANDCRAFTED BY MASTER KNIFE MAKERS
Elegance and tradition define the Bunka collection, inspired by Japanese culture (文化 “bunka”) and traditional cuisine.
Representing authenticity and the essence of Japanese culture, the collection includes exceptional knives designed to elevate your culinary experience: Kiritsuke, Santoku, Petty universal knife, and paring knife.
The blades in this range are distinguished by their angular and inverted profile (commonly called “inverted Tanto” or “K-tip”), offering unmatched precision and promoting careful slicing compared to traditional rounded profiles.
Your Questions, Answered
What is a kiritsuke used for?
The kiritsuke is a chef’s knife with a remarkably long blade. It allows fast and precise cutting of large quantities of food and is highly valued by professional chefs.
What is San-Mai steel?
San Mai, or sanmai (“three layers” in Japanese), consists of a central core made of very hard, sharp steel, with a layer of softer steel on each side of the blade to absorb shocks and extend the knife’s lifespan. These blades are more durable than single-layer steel and less expensive than more elaborate Damascus steel.
What is a bamboo blade guard used for?
The blade guard, or saya, is used to protect your knife blade from impacts it may suffer during transport or when stored in drawers.
Screw the fastener for maximum protection.
How does the lifetime warranty work?
We believe a good knife should be a chef’s trusted companion for life.
That is why we proudly back our knives with a lifetime warranty.
If you discover a manufacturing defect, simply contact us at help@kotaikitchen.com and we will repair or replace your knife free of charge.
In addition to our lifetime warranty against manufacturing defects, you are also covered by a 90 day money back guarantee in case your KOTAI knife does not meet your expectations.
Try a KOTAI knife with complete peace of mind and return it within 90 days if it is not right for you. No questions asked.
Is it worth buying this knife, or should I just buy a €30 knife from Ikea?
A cheap knife often ends up costing you more over time. It can break or lose its sharpness quickly, and low-quality steel simply will not hold an edge, no matter how many hours you spend sharpening it. Sooner or later, you may find yourself buying a new knife every year.
There are many inexpensive knives on the market that do not meet even basic standards, and very few affordable options for passionate home cooks who need reliable tools to support their craft or hobby without paying extra just for a brand name. Choose a KOTAI knife today and invest in a lifetime of safe, enjoyable cooking.