Hey there kiddo! You want to learn about the yubetsu technique? Well, let me explain it to you in simple words.
The yubetsu technique is a way of making knives using a very special method. It has been used for hundreds of years by the people of Yubetsu, a place in Japan. The method involves hammering a piece of metal over and over again until it becomes very thin and sharp. It takes a lot of skill and patience to do this, and not everyone can do it.
First, a piece of metal is chosen. The metal could be anything from iron to steel. The metal is then heated until it becomes red hot. This makes the metal softer and easier to work with. The metal is then hit with a hammer over and over again, making it thinner and thinner. This process is repeated many times until the metal is the desired thickness.
Once the metal is thin enough, it is sharpened using a special type of stone. This stone is called a "whetstone" and it is used to sharpen the blade until it is extremely sharp. The blade is then cooled down and polished.
People who make knives using the yubetsu technique are called "blacksmiths". They are very skilled people who have been trained to make knives in this way. The knives they make are very sharp and are used for many different things, like cutting meat or vegetables.
In summary, the yubetsu technique is a special method used by skilled blacksmiths to make knives that are very thin and sharp. The process involves heating a piece of metal, hammering it until it is thin, sharpening it using a whetstone, and cooling and polishing the knife. The end result is a very sharp and durable knife that can be used for many different things.