Whether you are a hobbyist glass fuser or an industrial manufacturer, understanding how to heat glass to take out internal stresses is the difference between a masterpiece and a pile of shards.
This tug-of-war creates . A piece of glass with high internal stress is a ticking time bomb; a slight scratch, a temperature change, or even a loud vibration can cause it to shatter spontaneously. To fix this, glassmakers use a process called annealing . What is Annealing? heat glass to take out internal stresses
Here’s a helpful review of the topic: