Types of Japanese knives The two primary lessons of forging Japanese kitchen knives are actually called honyaki and kasumi. The class of the knife is actually based upon the technique as well as material used during the course of the shaping process. Honyaki knife are actually true-forged, suggesting they are helped make from one material. A lot of commonly created coming from white colored or blue steel, these knives are actually forged along with top-grade, knife-specific steel. Kasumi knives are created coming from pair of components, much like samurai sabers. The white or blue steel (hagane) is actually high-carbon as well as is actually mixed with jigane, or a soft iron. The two products create a knife that is actually a lot more forgiving and less complicated to maintain than the honyaki.