Dip once or dip twice?

The study, to be published later this year in the Journal of Food Safety, is the only one I’ve ever seen to proclaim that it was inspired by an episode of “Seinfeld.” It was conducted as part of a Clemson University program designed to get undergraduate students involved in scientific research. Prof. Paul L. Dawson, a food microbiologist, proposed it after he saw a rerun of a 1993 “Seinfeld” show in which George Costanza is confronted at a funeral reception by Timmy, his girlfriend’s brother, after dipping the same chip twice.

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Professor Dawson told me that he had expected to find little or no microbial transfer from mouth to chip to dip, which would support George’s nonchalance. The results surprised him.