What temperature should I use for firepolishing?
Firepolishing is the process of heating a glass object in a kiln to a temperature high enough to impart some level of gloss to the surface.
Firepolishing can happen anywhere from 1100°F (593°C) - 1480°F (804°C), and temperature depends upon factors such as glass color, rate of heat, and the degree to which the surface has been coldworked. Firepolishing can also be achieved during a slump. As with all heatwork, it is cumulative.