Some thoughts:
- I don't know if there's any unsweetened cola, so "Drink that's sweetened most (if not all) of the time" would have been better I think.
- C = cold (and thus H = hot) is attested to by Collins Dictionary (seen on UK faucets). That said, I'm not sure if C and H faucet caps are that common in the UK in reality.
- For clarity, I meant the "like bits" here to be the cocoa bits.