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Cracking Off

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Published on Oct 18, 2007

As if glassblowing wasn't fast enough—it takes under three minutes to make a Roman bottle—cracking-off made the process even faster. This technique was well known by A.D. 20 or so, and cut the manufacturing time of simple tumblers in half.

Learn more about Roman glass at: http://www.cmog.org/article/glass-romans

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