The Metal-Detectable knife has been specifically designed for the food and pharmaceutical industries.They are high impact, food contact approved.The material has the ability to be detected & rejected by typical detection machines.Broken particles will be detected & rejected, and are X-ray visible.Knives that have internal open spaces breed bacteria and open blades cause contamination if they draw blood.The majority of knives have carbon steel blades which rust and are removable. These may drop into the product or packaging.