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By Hatsukokoro

Hatsukokoro Kokugei Blue 1 Kurouchi

Sanmai - Soft Iron Clad Kurouchi Blue 1 / Aogami #1 / Carbon Hyogo, Japan

The Hatsukokoro Kokugei(黒鯨) is a line all about the value. I say it is best for enthusiasts because normal people won't want a 240mm Kurouchi Gyuto when they wake up in the morning, and have only a small budget to spend on it because they already on the verge of bankruptcy from that Fujiyama Honyaki purchase last night.

Jokes aside, if you are quite into the idea of having a knife with fine Blue 1 carbon steel, and will to put it through a lot of use without caring too much about it being pretty, this line is the discount ticket into that. The series name Kokugei means "Black Whale", and these Kurouchi knives do bear a look of a whale, with scars all over its body.

I wouldn't even try to hide it: the fit and finish is rough. There are grind marks at the choil, there are grind marks on the spine, and hell, there are grind marks on the bevel that aren't completely polished away. Is it unpleasant? Depends on your standard. Does it affect the performance? Very likely not. But again, when a blue 1 240 gyuto is sold at this price, it hard to resist for the right kind of audience.

Pros

  • Budget friendly

Cons

  • Need extra care
  • Fit and finish can be improved

Best For

  • Enthusiasts
  • Students
Construction
Sanmai - Soft Iron Clad
Surface Finish
Kurouchi
Steel
Blue 1 / Aogami #1 / Carbon
Origin
Hyogo, Japan

Frequently asked questions

What is the difference between Blue 1 and Blue 2?

Proterial, which makes both, describes each the same way: an alloy steel with tungsten and chromium added to improve heat-treatment properties and wear resistance, hardening to over 60 HRC. In its Japanese materials, Proterial calls its Aogami (青紙) steels high-carbon steel (高炭素鋼).

Its figures give Blue 1 more carbon and tungsten, 1.25 to 1.35% carbon and 1.50 to 2.00% tungsten against Blue 2's 1.05 to 1.15% and 1.00 to 1.50%, with chromium of 0.30 to 0.50% against 0.20 to 0.50%.

Published by K&S Education Desk; staff review pending

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