The material used will resist sudden temperature changes (from -40 degrees C to +150 degrees C), corrosive agents and detergents. This means that the knife can be cleaned in a dishwasher and sterilized. The handle is perfectly balanced with the blade. The handle's green color makes the knife immediately visible on the work bench: greater safety at work. The shape of the handle was designed at the computer. By creating the Premana Professional collection, the aim of Coltellerie Sanelli S. p. A. is to make a decisive contribution to improving safety, reliability and hygiene at work. No other collection of professional cutlery currently available has all these properties. The Premana Professional collection knives are covered by European and U. S. patents.

Handles are also smaller, a feature those with small hands may appreciate. The steel used in the Pro S line is identical to that of the Five and Four Star lines. High-tech welding of knives this size and larger combines three steel types into what appears to be a single piece, so a knife's parts have distinct characteristics: a hard edge; a strong, stain-resistant bolster; and a stain- and corrosion-resistant tang. Traditionalists insist on single-piece forging for strength, but Henckels says the invisible welds are actually stronger than the steel. While this utility knife is dishwasher-safe, hand washing is recommended. -Fred Brack From the Manufacturer The J. A. Henckels Twin Professional S (or Pro S) knife series features trustworthy quality and classic three-rivet styling-it’s a line of knives admired by both professional chefs and home cooks of all skill levels. The Twin Pro S line contains knives for all tasks, including the following open stock knife types: parer, bread, peeling, sandwich, utility, carving, steak, chef’s, Granton edge slicer, santoku, and others. Twin Pro S knives are also available in a range of block sets and gift sets, to be sure that your cutlery needs are covered. A Reliable Standard in Knife Construction Twin Pro S knives are precision forged from a single piece of exclusive-formula, high-carbon, no-stain steel under the all-new Sigmaforge standard. As a result, Twin Pro S knives have improved quality consistency, lasting sharpness, and perfect geometry. Sigmaforge one-piece construction also provides high precision and improved stability of the blade and steel structure, thus improving cutting-edge retention for lasting sharpness. In addition, Twin Pro S knives use J. A. Henckels’s Friodur ice hardening for corrosion resistance, a process that also contributes to cutting-edge retention. An Ergonomic Handle for Easier Use J. A. Henckels’s Twin Pro S knives boast a comfortable, ergonomic three-rivet handle design that won’t wear against the hand and helps to provide control when doing any cutting task. These durable Novodur handles are perfectly bonded to the full tang on each knife for stability and durability. The impeccably balanced super bolster provides weight and adds balance for safer and more professional cutting. Features Sigmaforge one-piece precision-forged construction: Provides perfect geometry, high precision, and improved stability of the blade and steel structure, thus improving cutting-edge retention for lasting sharpness. Laser-controlled edge: Is sharper and stays sharper longer. Has a more consistent blade angle. Friodur ice hardening: Maximum no-stain properties and more blade strength. Improved resistance to corrosion and pitting. Super bolster: Provides weight, insures safety, and adds balance. Full visible tang construction: Provides proper balance and greater strength. High-carbon no-stain steel, an exclusive J. A. Henckels formula: Nonstaining, nonrusting Precision honed: Is sharper and stays sharper longer. Triple-riveted Novodur handles: Durable, strong, and smooth, these comfortable handles are perfectly balanced. Dishwasher-safe: Easy care (though hand washing is recommended by J. A. Henckels). Full warranty: J. A. Henckels stands behind all its knives.