There are numerous different enamelling techniques that have been developed throughout the centuries, each producing a different and individual result. However, all the techniques involve the fusing of coloured glass to metal that leaves a layer of smooth, polished colour.
Enamelling itself is a highly skilled craft which takes a great degree of control. A combination of potassium oxide, quartz sand, iron oxide and borax is ground together into a powder. Different metal oxides can be added to create different colours. These are then made into a paste and applied in a manner similar to paint. When it has dried the piece is fired in a kiln with temperatures rising to between 700 and 900 degrees Celsius. This is one of the most vital stages of the process and it is important for the kiln to remain at an even temperature. When the piece has cooled it is then sanded and polished.