The pieces are made from a flat sheet of clay, which is cut and folded into the finished form. When the form has dried, I can begin the decoration; this involves sketching on the pot with a soft pencil. When I'm happy with the design, I will then tube-line and paint with under-glaze colours. The piece is then biscuit fired, dipped in glaze, and then fired again, where it is now ready for the lustre decoration. The lustre paints are made from copper and silver mixed with clay, which creates beautiful, metallic, or iridescent effects when the work is put through a reduction process, and oxygen is removed from the kiln. This is an ancient technique that goes back a thousand years.