Anything that can be made out of metal can be enameled; anything from vases to spoons, to frames to jewelry, from metal mesh to solid forms, from large to small, from fancy to plain. The cells are filled with granular glass and fired at temperatures of over 800°C. The use of minimal colour in many pieces continues the notion of being a sketch torn from a book. Vitreous Enamel is a true glass fused to metal. Through the years, a variety of enameling techniques has been developed. Some involve how the metal is prepared and some involve how the enamel is applied.