Glass fusing

[7] Although this date is generally accepted by researchers, some historians argue that the earliest fusing techniques were first developed by the Romans, who were much more prolific glassworkers.

Modern glass fusing is a widespread hobby but the technique is also gaining popularity in the world of fine art.

[10] Most contemporary fusing methods involve stacking, or layering thin sheets of glass, often using different colors to create patterns or simple images.

The longer the kiln is held at the maximum temperature, the more thoroughly the stack will fuse, eventually softening and rounding the edges of the original shape.

The second stage- the anneal soak at 516 °C (961 °F) is meant to equalize the temperature at the core and the surface of the glass at 516 °C (961 °F) relieving the stress between those areas.

Depending on the kiln, the size of the project, the number of layers, the desired finished look, and even the brand of glass, ramp and soak temperatures and times may vary.

Slumping techniques allow the creation of larger, functional pieces like dishes, bowls, plates, and ashtrays.

Producing functional pieces generally requires 2 or more separate firings, one to fuse the glass and a second slump to shape it.