ZWILLING Diplome was developed in collaboration with Le Cordon Bleu, the esteemed culinary institute that trains top chefs worldwide. Designed to meet the high demands of professional chefs, this premium knife collection combines Japanese craftsmanship with high quality German steel and manufacturing expertise for the ultimate knives. Handcrafted in Seki, Japan—the samurai sword-making capital of the world—each ZWILLING Diplome knife is forged from incredibly hard FC61 steel for long-lasting sharpness. To maximize the steel’s properties, the FRIODURx2 blades undergo an innovative ice-hardening process that increases durability, improves corrosion resistance, and enhances cutting edge retention. The blade boasts a hand-honed Honbazuke edge. This three-step, traditional technique results in the exceptional sharpness that discerning chefs need. Comfortable to grip, the extremely ergonomic handle offers tireless cutting. The handle is thicker at the end to prevent slipping and is weight-adjusted for optimum balance and control. Featuring a traditional 3-rivet design, the handle has a stylish stainless steel stripe accented in blue. This chic blue evokes the color of classic French aprons, first place ribbons for culinary awards, and Le Cordon Bleu’s name.