
“Guinness isn’t the highest rated stout anymore,” declared a headline in The Drinks Business.1 “New data,” they said, reveals “which brand comes out on top.” I soon spotted that the source of their fresh numbers was Untappd, the beer logging and rating app — hardly a representative sample2 — so I knew this wasn’t going to be rigorous. But it’s always fun to poke around with these things, so I took a closer look. I didn’t expect things to get so weird and worrying.








