FORGING THE KNIFE
Heat the steel 1300℉ and quickly cool it down with water or oil, this process makes steel harder. This process is called “YAKIIRE”. Next step is heating the steel again with 392℉ and leave it in room temperature to gradually cool it down. This process makes knife stronger. This is called “Yakimodoshi”.
The blacksmith determines weather, temperature, humidity, type of steel or metal and forge the knife with best heat temperature and condition. This is the professional work by artisan.
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