[MrMcCall]

Doesn't aspartame partly break down into methyl alcohol if it gets too hot?

I regularly drank Diet Cokes 25 years ago, and remember some batches would be "worse" than others.

And, whether from cans or plasic bottles, you're either also getting the can's lining or the plastic from the container mixed into the soda, right? I mean, it's an acidic liquid, so there is bound to be some dissolution of the lining into the fluid, by my understanding, with the more the warmer the temp.

And I do wonder what temp the bottling takes place at.

[Aloisius]

It does. There's always a little methanol. Of course, when you drink it, your body will metabolize about 10% to methanol.

Of course, there's methanol is fruit and vegetable juices and your body will metabolize pectin containing fruit to methanol too.