- Sale!Enamel is the art of love, earth and fire. To produce this product, first the desired design is engraved on copper metal by an enamel artist, then the copper plate is cut to the desired shape and shaped with a pen and hammer and then. After creating the shape and form, the copper substrate is acid-washed and impregnated with a coating of white glaze, and this layer is heated in a heat oven at a temperature of 800 degrees Celsius and fixed on copper.