Nambé (pronounce /nɑːmˈbeɪ/) is an eight-metal alloy whose major component is aluminium. It was created at Los Alamos National Laboratory in the 1940s and is exclusively produced by the Nambé Mills, Inc., which was founded in 1951 near Nambé Pueblo, some 10 miles north of Santa Fe, New Mexico. The alloy has the luster of silver and the solidity of iron. Nambe has a lower thermal conductivity than silver. Nambé does not contain silver, lead or pewter (a tin and copper alloy) and resists tarnishing. However, it is susceptible to discoloration or pitting with acidic foods. It is not recommended any food be stored in Nambe metal or held for greater than a few hours due to these concerns (not health). Because Nambé's alloy is a trade secret, the Nambé company does not divulge the rest of the formula. The Food and Drug Administration (FDA) has declared Nambé safe for cooking and serving.