Raku firing is a traditional Japanese pottery technique that involves removing glazed ceramics from a kiln while they're still hot and placing them in a combustible material and covered with a metal trashcan to cool. The rapid cooling and lack of oxygen create a unique color pattern, crackled glaze or may be decorated with horse hair and feathers. Raku firing produces unpredictable results, with each piece being unique and dynamic. Pieces fired in Raku are not food safe and are intended primarily for decorative purposes. Pieces must be bisque fired before the workshop.