I remember it as just beer and cider, with the addition of blackcurrant making it a Purple Nasty, and all sorts of tales of how they allegedly reacted to make a vicious drink more than the sun of the parts that I am sure was fiction.

And for Americans, this means alcoholic ciders, since they also call raw apple juice cider, and most Americans have no idea what a blackcurrant is (a delicious intense berry that was illegal to cultivate in the US for a lot of the recent past).

I’m not seeing what the translator did wrong.