Interesting. Thanks.
I know that one of the things I have to be careful about is fruit flies. They carry acetobacter.
The Romans knew. Sometimes wine (vin) would go bad (gar), because fruit flies and acetobacter had infected it. That bacteria changes ethanol to acetic acid. What we call vinegar.
yeah, the fruit flies are a problem mostly during fermentation itself. They like to hang out around the air locks where theCO2 and the odors escape. I use flypaper to control them but I think if you could prevent them from smelling the odors escaping from the airlocks, they wouldn’t become a problem. a fume hood of some sort perhaps?