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."