Yanagi-ba-bocho literally means “willow blade knife”. Some people, for a shorter term, call it Yanagi. Yanagi knife belongs to the sashimi hocho group of Japanese knives. The Yanagi knife originated from Kansai (Osaka) region.
In order for a slice of sashimi to be called perfect, when one looks at it at a microscopic view, the inside must be smooth looking and shiny. And that is usually the result when it was sliced using a Japanese Yanagi knife.
Here is a list that makes a Japanese Yanagi knife perfect for slicing sashimi:
** Length – This knife has a long blade so it can slice through a block of raw fish in just one pulling direction. When one cuts the fish in an irregular pattern, the cross section is going to be bad not only in appearance, but it will also cause the cell of the fish being cut destroyed. This has a direct effect on the taste of the fish.
** Thickness – It has a thin blade that creates less effort in slicing a fish. When there is even the slightest amount of force added in slicing, one is not slicing anymore, but instead, tearing the fish.
Scraped Back Face – some Japanese Yanagi knives have its back faces scraped out so that the sliced fish easily detaches itself from the blade.
** Single Ground – one thing that makes a knife excellent for slicing fish is that it has a single ground blade. A single ground blade, aside from it being easy to sharpen, gives more control to the user for slicing delicate objects, like in this case, raw fish.
In making a Japanese Yanagi knife, its hardness and toughness is modeled in the same way as a Japanese sword. It is made using a combination of hard and soft steels; the softer steel wraps around the inner harder steel. So, what can users expect from a Japanese Yanagi knife? Sharpness and durability for a long period of time.
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