Ryusen has been forging chef’s knives since 1953 according to traditional methods dating back to more than 700 years ago, in the Echizen region of Japan. Knowledge acquired in the last 700 year, is used in complete harmony with current state of the art technology, resulting in the creation of true masterpieces. Each and every chef’s knife is handcrafted by artisans. The knowledge Ryusen has gained in the past with the forging of samurai swords can be found in the details of the Jonnie Boer chef’s knife.

Each Jonnie Boer knife has a unique Damascus steel profile of 33 layers, determined by the knife’s maker. The outer layers are made of a softer stainless steel. These layers offer resistance against oxidation and provide a small measure of flexibility. This layer is hammered by hand and polished to a high luster finish which contributes to its own identity.