Enamelling is the ancient art of fusing glass to metal in a kiln at high temperature.
You can also enamel using a torch but my preferred method is in a kiln.
Each firing is quite quick about a minute or two but a piece can have many, many firings depending on the technique used and has to be cooled and cleaned between each firing before the final firing.
There are a variety of techniques probably the most well known being Cloisonné and champlevé.
Copper is a traditional seventh wedding anniversary gift.
Copper is known as Man's Eternal Metal. It has been used since ancient times and is a natural antibacterial.
Recycling at its best: Nearly 80% of all the copper ever produced is still in use today because copper is 100% recyclable and retains 95% of its original value.
Supply: Copper is a plentiful natural resource on Earth. At the current rate of extraction there is enough copper in the top kilometre of the Earths crust to meet demand for 5 million years.