Nambe alloy is an eight-metal, aluminum-based alloy created at Los Alamos National Labs in the 1940s. Nambe does not contain silver or lead. Because Nambe’s alloy is a trade secret, Nambe does not divulge the rest of the formula. The FDA has declared Nambe safe for cooking and serving. For additional information on Nambe, please see our Nambe History and FAQ section.