Shipping Carbonated Drinks from China or just Internationally

Heyo, I just had a small question on how well shipping carbonated drinks works internationally from China to countries like Germany.

I had a bigger proxy do this once by accident as they normally don't allow it and it arrived just fine, I do know of the risks that can occur during international transport but I have never found any declarative answer on it being prohibited by customs themselves and in case of airlines it seems like a mix bag of answers. I have also seen people ship carbonated drinks just fine over on other subreddits.

The main reason this question came up is cause I now have 2x 4 packs of carbonated drinks stuck at that proxy cause their logistics partner adamantly denies wanting to ship it now so it just made me curious on other people's experience.

(this might also possibly end up being lead up with a request post later on if I can't resolve the issue with the current proxy)