I used to think that using glue in your glasswork looked cheap and sloppy. I didn’t realize how important it would be to join glass to other materials, or to connect two glass forms that would be impossible to fuse hot.
Potters operating at stoneware temperatures traditionally fire pottery to cone 9 (2300°F), but many are now discovering a lower stoneware firing temperature at cone 6 (2232°F).
The process of annealing glass is to cool it slowly enough to let the entire thickness cool with very little difference in temperature from the core to the surface.