The Zwilling J. A. Henckels Four Star line is made in Solingen, Germany, and are forged, not stamped. Blade density is improved using the FRIODUR ice-hardening process, which provides a sharper initial edge for easier maintenance over time. Larger knives are crafted using Henckels' exclusive Sinternal Component Technology, which fuses blade, bolster and tang into a single, seamless piece for precision, easy handling, and balance. This knife is made of high-carbon stainless steel and precision-honed, with a laser-controlled edge, a balanced super-bolster, and a full rat-tail tang that extends to the back of the polypropylene handle, which is permanently bonded for seamless accuracy.
Zwillings J.A. Henckels Knives are sharper and stay sharper longer, have more consistent blade angle, have improved resistance to corrosion and pitting, and are fully guaranteed against defects in material and/or craftsmanship.