LorgSkyegon

Question: Why did Thor let Cap have some of his drink that he said mortal men can't have. I know that Cap's super soldier serum makes him stronger, but he's still human.

THE GAMER NEXT DOOR

Answer: By mortal men, he probably just means ordinary. Since Cap has super powers, Thor doesn't consider him ordinary (plus the we learn in Captain America: The First Avenger that his advanced metabolism prevents him from getting drunk). Since Thor also relents and allows the WWII veterans to partake in the drink as well, it's safe to assume he doesn't consider it to be deadly for humans to have.

Phaneron

Answer: Cap now has a superhuman metabolism, as shown in the first Cap movie when he was unable to get drunk after Bucky died.

LorgSkyegon