Similar to this question regarding transit on a DUB-ORD-PDX route, can I make duty-free purchases (e.g. alcohol) in Lima, and return with it to London via Paris (LIM-CDG-LHR), and bring the liquids with me?
I also note that this (unanswered) question is similar, though less specific about the intermediate airport. I don't know whether that would make a difference (i.e. whether individual airports have different mechanisms which might specifically allow or preclude such a thing).
The UK Government web site's advice is vague on the subject, while ifly says that it simply can't be done without the liquids being confiscated.
The value of the drink is unlikely to be sufficient to make it worth buying a suitcase at CDG and checking that in, though a collapsible holdall might be one solution, if that's a possibility. I just find it frustrating that something which should be easy is made so difficult.
[Edit] The return flights (AF483 and AF1080) both use terminal 2E at CDG, which (according the the easycdg site in DCTLib's answer) means I'll definitely be going through a security check.