The Line knives were specially designed for intense use. They receive a thermal treatment which consists of hardening (heating the blade), sub-zero (cooling from 50 to -196 degrees), and tempering (increasing the steel elasticity) for a longer and more efficient life. The anatomical and ergonomic handle offers safety during use. Made of polycarbonate and fibreglass, the handle is directly injected on the steel bolster and finalised with aluminium rivets. The Line has a 25-year warranty covering manufacturing faults and is certified by the National Sanitation Foundation (NSF), an organisation internationally recognised by its consultancy, inspection, and training practices aimed at guaranteeing the sanitation of food, water, air, and the environment. The pieces are dishwasher safe.
As per the manufacturer, Tramontina - 25 year against defects workmanship
SAFE AND PROPER USE: Wash and dry items thoroughly before first use. Handle sharp object with care and keep them out of the reach of children. For longer-lasting products, dry thoroughly before storing, including after removal from dishwasher. Please recycle products and packaging in accordance with existing recycling guidelines.