Red Dragon Crush

What we know

Wine served at Blue Water Inn by Urwin Martikov alongside Purple Grape Mash No. 3 (Session 9 @ 02:40:29)
Urwin gifted bottles free to Mercurio as a friend of the feather (Session 13 @ 00:22:16)
Party drank at Party Hideout after long rest (Session 13 @ 00:42:32)
Mercurio refilled bottle from fermentation vats at Wizard of the Wines after retaking winery (Session 24 @ 03:09:21)
Constitution check 21 when sampling refilled wine from vats (Session 24 @ 03:11:32)

Mercurio requested bottles in high spirits after Urwin allyship talk (Session 13 @ 00:22:10)