[troutman]

Despite these differences, most people can't tell the difference, according to a study by Samuel McClure and Read Montague: "Coke and Pepsi are special in that, while they have very similar chemical composition, people maintain strong behavioral preferences for one over the other. We initially measured these behavioral preferences objectively, by administering double-blind taste tests. We found that subjects split equally in their preferences for Coke and Pepsi in the absence of brand information."

https://www.businessinsider.com/the-...-pepsi-2012-12