What must be done to release the internal stresses that build up in glass products during manufacture?

Answer A

What must be done to reduce the pressure inside the glass products during production?

A. Glass must be evenly heated and cooled.

B. Glass must be cooled rapidly.

C. Glass must be kept moist until cool.

D. Glass must be shaped to its desired form immediately.

For example: “glassware must be slowly reheated and uniformly cooled after manufacture to release internal stresses induced by uneven cooling…” (glass must be slowly heated and cooled synchronously…)