Personally I don’t like diet sodas. There’s ALWAYS an aftertaste, but sometimes it’s all that’s left at a party or your roommate bought the wrong package and they’re just taking up space in the fridge. The aftertaste is caused by an artificial sweetener called aspartame and some people notice an “off” or bitter taste to foods sweetened with it.
Rather than letting all that soda sit indefinitely try a spritz of lemon juice in your drink. It clears the aftertaste right up.
*On another note you can try it with bacon but it’s not recommended.