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By Knives and Stones (K&S)

K&S Blue 2 Kurouchi Iron clad

Warikomi - Soft Iron Clad Kurouchi Blue 2 / Aogami #2 / Carbon Other, Japan

This Chinese cleaver under our in-house brand 岩刃 (Knives and Stones, or K&S) is the result of more than a year of extensive product development, which leads to a high-performance cleaver that excel in cutting performance, maintainability and perceived sharpness.

Chinese cleaver is a profile that is rather rare on the market, as it is unfamiliar to most of users outside of China. Many may heard this is the only knife profile that Chinese chefs use and it is really good at chopping vegetables and scoop them into the wok, both I can confirm to be true. What we are facing is, due to the low demand, there are rarely any maker willing to develop a product that is well forged and has a good core steel to match it. Even the Sugimoto, the brand that is known for making great Chinese cleavers, makes their Chinese cleaver out of a flat bar with no evidence of forging.

This K&S Chuka is our answer to this blind spot in the market, and the only knife we have in the store forged in China, but with a authentic Hitachi Blue 2 carbon steel core cladded in iron. A forged thick spine concentrate most of the weight along the axis of the handle, giving the hefty weight that the Chinese Cleaver is known for. The blade thins down towards the edge rapidly, making it much lighter to rotate this wide blade - something that most made in Japan Chinese Cleaver can't do. Overall, this forged body handles extremely nice for someone who have been using Chinese Cleaver since very young.

The steel selection is the highlight of the blade: a Hitachi Blue 2 core. The bity edge formed by Blue 2 penetrate the surface effortlessly, then the gravity just pulls the blade through. With the great handling this Chinese Cleaver presents a better overall experience than any other cleavers I've tried.

One thing we cannot miss is the very competitive price of this knife, it sits at a much lower price point than most Japanese cleavers but offer a better experience. Essentially it is a combination of the strength of Chinese Cleaver forging skill and Japanese steel. If you are looking for a Chinese Cleaver to try out, this is undoubtably my first recommendation.

Pros

  • Excellent performance
  • Budget friendly
  • Thin behind the edge

Cons

  • Prone to rust
  • Need extra care

Best For

  • Pro chefs
  • Enthusiasts
Construction
Warikomi - Soft Iron Clad
Surface Finish
Kurouchi
Steel
Blue 2 / Aogami #2 / Carbon
Origin
Other, Japan
K&S Knives and Stones Kurouchi Chinese Cleaver Chuka Blue 2

Frequently asked questions

What is the K&S brand 岩刃?

Our line page says 岩刃 is our in-house brand, which it glosses as Knives and Stones, or K&S.

It says this line's Blue 2 kurouchi Chinese cleaver is sold under it, forged in China with a Blue 2 core in soft iron cladding, after more than a year of product development.

Published by K&S Education Desk; staff review pending

Does the K&S Blue 2 Chinese cleaver rust?

It can rust. Proterial, which makes Blue 2 (Aogami 2), describes it as an alloy steel with tungsten and chromium and lists its chromium at 0.20 to 0.50%, under the 10.5% the JSSA sets for stainless. In its Japanese materials, Proterial calls its Aogami (青紙) steels high-carbon steel (高炭素鋼).

Our line page lists the cladding on this cleaver as soft iron, not stainless clad. We suggest drying the whole blade after washing.

Published by K&S Education Desk; staff review pending

What is the difference between Blue 2 and White 2 steel?

Proterial lists 1.05 to 1.15% carbon for both steels; its Blue 2 table lists 0.20 to 0.50% chromium and 1.00 to 1.50% tungsten, while its White 2 table lists neither.

Proterial describes White 2 as a carbon steel with minimum impurities and high hardness, and Blue 2 as an alloy steel with tungsten and chromium to improve heat-treatment properties and wear resistance, with a hardening hardness of over 60 HRC for both. In its Japanese materials, Proterial calls its Aogami (青紙) steels high-carbon steel (高炭素鋼). Neither steel is close to the JSSA's 10.5% minimum for stainless.

Published by K&S Education Desk; staff review pending

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