During the setup of any reputable game of beer pong, you add an extra cup of water on both ends: The ball washing cup. No, it isn’t filled with some magical antibacterial water. It’s just normal H2O from the tap. That means that a reasonable thought anytime you rinse off the ball is: What is this actually doing? Then you sink the disgusting ball into one of your opponents’ cups and thankfully becomes their problem.
But just how gross is a game of beer pong? The good people at Popular Science decided to figure out once and for all just how germ infested a game of beer pong can be. The magazine teamed up with researchers from Rockefeller University, and then played one of the most scientific games of beer pong in history.
“Before playing our super-scientific beer pong game, we donned plastic gloves and took swabs from the table, floor, rims of cups, and ping pong ball,” Popular Science wrote. “The Rockefeller microbiologists took samples of the beer and of the water from the water cups.” From there, a sample of beer was taken after each sip of beer, and after the first round, surfaces were once again swabbed and the wash cup was sampled.