Brian Sheldon is co-author of Did You Just Eat That?: Two Scientists Explore Double-Dipping, the Five-Second Rule, and other Food Myths in the Lab (W. W. Norton & Company, 2018). He’s also a professor emeritus of Food Microbiology and Poultry Science at North Carolina State University in Raleigh, North Carolina.
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What Happens When You Double Dip That Chip?
Does double-dipping a chip really infect the dip? Is the five-second rule real? Plus, a look at other food myths.
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The Science Behind The Five-Second Rule
Let’s dig into the science and history of this urban myth.