Can you please cite a source to substantiate this. It is my understanding that the wine used for the Eucharist must contain some ethanol*.
Aside from chemistry, I’m not going to pull sources, no.
The chemical/biological answer is that you
are going to have trace alcohol within moments of crushing the grapes. As the juice gets on the outside skin, it will come into contact with yeast. As the yeast eats a few sugars, it will issue an ethanol.
As the yeast further wake up, they will double roughly every half hour.
Soi unless you scrub or sterilize the grapes before crushing, there’s no such thing as crushed grape liquid without alcohol (unless you remove it by centrifuge, boiling, or other process).
Whether you can measure or not is dependent upon your methodology, not whether or not its there.
Fermentation isn’t immediate, as if a switch had been flipped.
Unless you somehow reduced the count of yeast to dozens, it’s statistically certain that you’ll have an ethanol molecule momentarily.
But I’m not going to spend the time to pull the biology resources, either for the process time or the density of yeast/grape (the statistics I can do off the cuff).
In short, even though there are multiple processes that yeast can use, the question isn’t
which but
how much of each.
hawk