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Lasers Get to the Bottom of Bad Beer

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Brent D. Johnson

Anyone who has tasted beer that has been exposed to too much sunlight will recall a uniquely unpleasant flavor, followed by shudders. The light transforms the beer, producing a sulfur compound that is not unlike the noxious chemical produced by skunks. To help solve this problem, Malcolm Forbes, a chemistry professor at the University of North Carolina, and Denis De Deukeleire of Ghent University in Belgium exposed beer to laser light. They used a spectroscopy technique developed by Forbes called time-resolved electron paramagnetic resonance, because De Keukeleire believed that...Read full article

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    Published: April 2002
    Accent on ApplicationsApplicationsBasic ScienceLasers

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