Regardless, I only bring this up to illustrate that if someone serves me a Diet Coke instead of the fully-loaded classic version, I will NOT be pleased. Then I started working as a waitress in a restaurant in uni and through many, many drink orders, I realised something very important—classic Coke is lighter in colour than Diet Coke. Observe:Chelsea LupkinNow it's obvious to my critical, Coke-loving eye that the fizzy drink on the right of this photo is Classic Coke, and the darker drink on the left is Diet Coke. "The Diet Coke just has more ice," they said. I do have a theory about why: Classic Coke has more carbonation than Diet Coke, therefore it would make sense that it contains more bubbles, especially when in fountain form.

Source: The Star May 19, 2023 10:44 UTC