(Ἀκρατοπότης), the drinker of unmixed wine, was a hero worshipped in Munychia in Attica. (Polemo, apud Athen. ii. p. 39.) According to Pausanias (1.2.4), who calls him simply Acratus, he was one of the divine companions of Dionysus, who was worshipped in Attica. Pausanias saw his image at Athens in the house of Polytion, where it was fixed in the wall.
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890