Italian scientists have figured out how to make pizza taste better—and it has nothing to do with cooking.
Researchers at the University of Udine in Italy recently conducted an experiment with 18 male and 15 female volunteers aged between 20 and 31. The subjects were asked to rate the "desirability" of a margherita pizza based on its general appearance and then again after viewing facial expressions communicating happiness, neutrality, or anger.
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The first finding was no big surprise: Light red sauce, which can suggest an early state of decomposition, scored negatively. Bright red sauce is preferred.