That has always been an issue before. But from the people I’ve talked to, who where finally talked into it, that small amount of wine had no effect in there clean life style.
lol, I learned about proof in Middle School health class

Proof is a way of measuring alcohol content. I believe proof is twice the percentage. For example, Nyquil has 10-20% alcohol in it, so it would have a proof of 20-40. That 2 proof was gross under exaggeration for effect. Most communion wine has a 10-15% alcohol level. Anyways, that is, by hard drink standards, hardly anything. Not in compared to the 100+ proof these reformed drunks would drink.
But, not drinking wine is fine any way you look at it. From the Symbolic aspect, exact scriptural accuracy isn’t required for symbolism. From the transubstantiation aspect, the essence can be gained by either bread or the wine.
On the bright side, because of the beliefs of a former pastor, my churches gets some Charismatic nuts from time to time. I like to think of wine as a nutty-protestant-Pentecostal repellant.

lol j/k