Altar Wine In Paul Turner's Blog by Paul TurnerSeptember 1, 2018 Q: Is there a required percentage for alcohol in altar wine? I’ve heard it has to be between 5 and 18%. == A: The Vatican’s liturgical documents do not specify a percentage. It’s just called “wine”. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Click to email a link to a friend (Opens in new window) Email