The genitive is used with verbs signifying to enjoy, taste, eat, drink.
ἀπολαύομεν πάντων τῶν ἀγαθῶν
we enjoy all the good things M. 4.3.11, εὐωχοῦ τοῦ λόγου
enjoy the discourse R. 352b, ὀλίγοι σῑ́του ἐγεύσαντο
few tasted food A. 3.1.3. So (rarely) with ἥδεσθαι take pleasure in.
a. Here belong ἐσθίειν, πῑ́νειν when they do not signify to eat up or drink up: ὠμῶν ἐσθίειν αὐτῶν
to eat them alive H. 3.3.6, πῑ́νειν οἴνοιο
drink some wine χ 11, as boire du vin (but πῑ́νειν οἶνον
drink wine Ξ 5, as boire le vin). Words denoting food and drink are placed in the accusative when they are regarded as kinds of nourishment.