Science on tap: effective public engagement or preaching to the choir?

The goal of Science Cafés and Science on Taps is to encourage open discourse between scientists and the public in a casual setting (e.g., a bar) in order to improve the public understanding of, and trust in, science. These events have existed for over two decades, but there is no research studying their efficacy. Data presented here demonstrate that a yearlong Science on Tap series induced little change among the attendees with respect to attitudes, emotions, and knowledge about the nature of science. Ultimately, we found this event may be preaching to the choir rather than changing hearts and minds.