Each piece from the Beatriz Ball collection is made entirely by hand by skilled metalware artisans just outside Mexico City. The artisans employ the ancient art of sand casting: pouring a premium quality alloy of molten aluminum into sand molds, and then going through four levels of polishing. More than twelve different sets of hands are involved in the creation of each piece, and the result of this intensely handmade process is a piece with rich character and beauty. But make no mistake about it, Beatriz Ball metalware is very functional. The unique characteristics of the metalware help keep foods warm or cold. And it will never tarnish.