~ Mariposa Brillante pieces are made of sand cast aluminum; they are versatile and functional, exceeding national FDA requirements for metal serveware. ~ Brillante holds a chill nicely, and can be warmed to 300?F for serving hot foods. ~ Please expect some cooling and buffing marks. These are not imperfections but typical characteristics for hand poured, sand-cast pieces and your guarantee that your piece has been cast and polished by hand.