Winemakers in California do sometimes capture ethanol vapour escaping from fermentation tanks: https://www.aromatica.io/ https://www.aromatica.io/ https://www

Winemakers in California do sometimes capture ethanol vapour escaping from fermentation tanks: https://www.aromatica.io/ https://www.aromatica.io/ https://www.youtube.com/watch?v=qmBgx-Z5jhg https://www.youtube.com/watch?v=qmBgx-Z5jhg Although that's an easier problem - higher concentrations, and a smaller volume to collect from.