In
glassblowing, annealing is a crucial process to relieve stresses in the glass and increase its durability. Special tools are used to carefully heat the glass object and then slowly cool it down, allowing the internal stresses to dissipate. This helps prevent cracking and breaking of the glass. The tools used in annealing include a furnace or
kiln for heating the glass, annealing ovens for controlled cooling, and heat-resistant gloves and tongs for handling the hot glass.
Here is a list of tools used to perform annealing: