Hot molten gobs are made from silica-rich sand, cullet (recycled glass), and a mix of calcium carbonate and sodium carbonate. Rocketing through the bottle-making machinery, the fiery balls shoot into molds, forming into different shapes. The resulting glass bottles and jars are then checked, rinsed, filled, capped, pasteurized, and labeled.The Glass Ribbon Machine and Glas, Bert Haanstra‘s Oscar winning documentary short film (1959).
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