OET interlinear YHN (JHN) 2:10

uW Translation Notes:

Note 1 topic: figures-of-speech / hyperbole

πᾶς ἄνθρωπος

(Some words not found in SR-GNT: καί λέγει αὐτῷ Πᾶς ἄνθρωπος πρῶτον τόν καλόν οἶνον τίθησιν καί ὅταν μεθυσθῶσιν τόν ἐλάσσω σύ τετήρηκας τόν καλόν οἶνον ἕως ἄρτι)

Every man here is an exaggeration that refers to something being a common practice. If this might confuse your readers, you could use an equivalent expression. Alternate translation: [A man usually]

Note 2 topic: figures-of-speech / gendernotations

πᾶς ἄνθρωπος

(Some words not found in SR-GNT: καί λέγει αὐτῷ Πᾶς ἄνθρωπος πρῶτον τόν καλόν οἶνον τίθησιν καί ὅταν μεθυσθῶσιν τόν ἐλάσσω σύ τετήρηκας τόν καλόν οἶνον ἕως ἄρτι)

Although the term man is masculine, the head waiter is using the word here in a generic sense that includes both men and women. Alternate translation: [Every person]

Note 3 topic: figures-of-speech / explicit

καὶ ὅταν μεθυσθῶσιν τὸν ἐλάσσω

(Some words not found in SR-GNT: καί λέγει αὐτῷ Πᾶς ἄνθρωπος πρῶτον τόν καλόν οἶνον τίθησιν καί ὅταν μεθυσθῶσιν τόν ἐλάσσω σύ τετήρηκας τόν καλόν οἶνον ἕως ἄρτι)

This means that guests were given the cheaper wine, which is of lower quality and inferior flavor, after their senses had been dulled by drinking too much alcohol and were thus unable to tell that it was inferior wine. You could include this information if that would be helpful to your readers. Alternate translation: [and the cheaper wine when they have become drunk and unable to discern the quality of the wine]