Thank you for responding.
The change in density that you observed does not equate to a capture of ethanol by the filter.
Ok, then we drank the resulting liquor. 4 pass stuff. Very drinkable but less potent than most wine. Starts out 40 proof. Then 30. Then about 22. Then a little over 16. About 8% alcohol.
We could drink it like a porter. Like a stout beer of equal abv. We could drink it like a Chardonnay or anything else with about 8% alcohol by volume.
Sorry, but it just is. Don’t ask me to explain how or why, but it pulls about 25% of the alcohol per pass till it saturates whatever is bonding to the alcohol.