About Fused Glass

Fused glass is the heat bonding of separate pieces of glass by firing them together in a kiln. 

Its origins are not known with certainty, but there is evidence that the method was first discovered by the ancient Egyptians around 2000 BC.

The process was used extensively by the Romans and it was the main method used to work glass for 2000 years.

It largely went out of fashion with the discovery of glassblowing, which offered a more efficient and versatile technique.

Glass fusing regained popularity in the early part of the 20th Century and is now used by many hobbyists and artists worldwide.

Fused glass should be treated like fine china or crystal and it should not be used in a micowave or dishwasher.

The specialist glass used has a relatively high coefficient of thermal expansion.  Microwaves can heat the glass unevenly, which can result in the glass cracking due to thermal shock.

Most dishwasher soaps contain fine abrasives.  These can etch the glass which can result in it becoming scratched and cloudy.

Fused glass containers are normally suitable for dry foods but some other types of foods may stain the surface.

According to the glass maunufacturer, products with a clear glass capping have minimal lead and cadmium leaching -- well below FDA limits and they may be regarded as food safe.  Others should not be regarded as food safe.


Some of my designs need special care when handling.