Customarily the preferred knife for most kitchen tasks, our 6-inch/ 16cm Chef’s Knife bears a classic design for general use.ViCeraTM ceramic knives are made of an advanced, high-tech ceramic called zirconium oxide (also known as zirconia). Zirconium oxide is extremely hard and wear resistant, rating 8-1/2 on the Mohs scale – surpassing stainless steel (5-6 Mohs) and approaching the hardness of diamond (10 Mohs). The Mohs scale, developed by mineralogist Friedrich Mohs, is the universally accepted standard for measuring the hardness of minerals. The primary difference between ViCeraTM and other ceramic knife manufacturers is the size of the zirconium oxide particles in the finished blade. Using advanced technology, the zirconium oxide particles in ViCeraTM blades are broken down to one fifth of their original size. They are then pressed using 500 tons of pressure (compared to the 200 tons used by other ceramic producers). The end result is a stronger, denser blade with substantially longer edge retention. Because ViCeraTM knives are forged to such exacting standards, there is no need to polish the entire blade before final presentation, which other manufacturers must do. When applied to the entire blade, polishing can create tiny, almost invisible cracks, which can compromise quality and make the knife more susceptible to breakage. ViCeraTM blades are only polished on the cutting edge revealing a brilliant, dense, white blade that naturally resists staining. When you pick up a ViCeraTM ceramic knife, you are holding a perfect balance of new technology and old-world craftsmanship. A brilliant, white blade that is as light as a feather and tougher than nails.