American chocolates (like Hershey’s) tend to taste more sour because they have more sugar and less cacao. The milk also tends to have a more butyric acid taste for some reason. Perhaps the difference is how the milk is treated, but those are trade secrets.
I also think white is better than dark chocolate, but what kind of dark chocolate you’re eating that’s sour? Dark chocolate is supposed to be bitter.
American chocolates (like Hershey’s) tend to taste more sour because they have more sugar and less cacao. The milk also tends to have a more butyric acid taste for some reason. Perhaps the difference is how the milk is treated, but those are trade secrets.