Housing made of high-quality special aluminum alloy with a titanium oxide plasma layer for optimal cut and scratch resistance, fired at 20,000 °C, nearly as hard as a diamond. The barrier layer provides optimal corrosion protection against aggressive cleaning agents, fruit acids, and vinegar. The reinforcement layer with mineral particles ensures long-lasting abrasion resistance. The surface coating features a non-stick coating made from the unique Lotan special sealant, enhanced with ceramic.