From context, I think the latter.
[X] Stores them in the room where Uldon was until he was sure what to do with it.
[X] Bring it home and hide it in his room. Might raise some questions if it was found, but it would at least keep it nearby if he needed it...
[X] Drink more before leaving, it seemed to have a notable effect on his Body Refining so perhaps more could help him along further?
Regarding the vote over the meat... maybe we shouldn't be too eager to eat the meat of what appears to be a Khorne-tainted monster, before we even really understand what it is or what it might do to us? We just saw some kind of malignant presence get expelled from us that we had no awareness of before, that apparently probably entered us just from us being here. I'm willing to try more of the red liquid because our friendly ghost friend (RIP) vouched for it, but nothing else down here has that vote of confidence so Li has only his own imperfect recollection of cultivation arts from a totally different setting to guide his understanding of what eating these critters might do. For that matter, if the meat DOES detect as tainted, and we got caught with THAT... I think the theoretical opportunity cost from leaving the meat behind is lesser than the possible risk of taking it.