"Once subjected to double-dipping, the salsa took on about five times more bacteria (1,000 bacteria/ml of dip) from the bitten chip when compared to chocolate and cheese dips (150-200 bacteria/ml of dip)," Dawson wrote in the article. "But two hours after double-dipping, the salsa bacterial numbers dropped to about the same levels as the chocolate and cheese."
Dawson goes on to explain that dips with lower viscosity, like salsa, result in more of the dip falling from the bitten chip or cracker and back into the shared serving dish -- bringing all that mouth bacteria with it. Additionally, the researchers found that thicker dips, like cheese dips and chocolate dips, tend to go faster, which reduces the risk of being exposed to double-dipping.
But should you actually be worried about scooping up more than just delicious queso at your next wake, baby shower, or Festivus party? According to the research, yes. Dawson offers this advice: "If you detect double-dippers in the midst of a festive gathering, you might want to steer clear of their favored snack. And if you yourself are sick, do the rest of us a favor and don’t double-dip."
Hate to say it, but perhaps people should start recognizing George Constanza for the psychopathic monster that he is.
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Tony Merevick is Cities News Editor at Thrillist and will totally call you out for double-dipping, you nasty. Send news tips to firstname.lastname@example.org and follow him on Twitter @tonymerevick.