People can tell the difference in blind taste tests: https://drinks.seriouseats.com/2011/09/the-food-lab-drinks-edition-is-mexican-coke-better-than-regular-coke

People can tell the difference in blind taste tests: https://drinks.seriouseats.com/2011/09/the-food-lab-drinks-edition-is-mexican-coke-better-than-regular-coke-coke-taste-test-coke-vs-mexican-coke.html https://drinks.seriouseats.com/2011/09/the-food-lab-drinks-e... (though in this case, most of the Americans preferred American coke)