The edge of an ONYX COOKWARE™ knife uses our patented hybrid combination of ceramic and steel to give you the best of both materials – without the drawbacks: the exceptional long-lasting sharpness of ceramic combined with the quality, durability, and strength of steel.
During the forging process, we use a 5 mm thick plate made from our ceramic-steel composite, which is plasma welded into the steel blade. This creates an edge with an incredible hardness of 64 HRC on the Rockwell scale. This means our knives stay sharp longer than traditional steel knives on the market.
Each knife edge is then precision-ground to perfection. The unique composition of our patented hybrid ceramic-steel material allows us to use more aggressive sharpening methods than are normally possible with standard steel knives. The result is the sharpest edge you are ever likely to experience – and continue using – without rapid dulling.