Gather silica sand, soda ash, and limestone
Mix the raw materials in precise proportions
Add cullet, if available, to help melting
Heat the mixture in a furnace until it melts
Refine the molten glass to remove bubbles and impurities
Shape the glass by blowing, pressing, rolling, or casting
Anneal the shaped glass to relieve internal stress
Cool the glass gradually in a controlled lehr
Cut the glass to the required size and shape
Grind and polish the edges
Clean the glass thoroughly
Inspect for defects and quality issues
Package the finished glass for use or shipment