SciTech

SciTech

Ask a Scientist: How does a beer get skunky?

Malcolm Forbes is director of the Center for Photochemical Sciences at Bowling Green State University, in Ohio, a post he took after being on the faculty at UNC-Chapel Hill for 25 years. Here he explains what has gone wrong when your beer tastes like it has been spiked with skunk spray. Questions and answers have been edited.

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