Why use a kiln when glass blowing?

A kiln is essential in glassblowing for several reasons: it provides controlled heating and cooling, which prevents thermal shock and ensures the glass maintains its integrity. After shaping, the glass pieces are typically placed in the kiln for a process called annealing, where they are gradually cooled to relieve internal stresses. This step enhances the durability and clarity of the finished product, making it less prone to cracking or breaking. Additionally, kilns can be used for fusing or slumping glass in various artistic applications.