You’ve heard the old saying “You can catch more flies with honey than with vinegar,” right? If you’ve brewed kombucha, you know that it isn’t true!
In nature, vinegar (acetic acid) indicates fermenting activity, which signals to scavengers like flies that there’s a bounty of rotting food nearby (Yummmmmy)! Because fermentation is really just controlled decomposition (don’t tell your non-fermenting friends, it might gross them out), flies are naturally drawn to most fermenting foods.
The usual precaution is to cover any ferment with a cloth (cheese cloth is not recommended because the critters can shimmy through it) and secured with a rubber band or string to keep the cover taut.
Kombucha in particular can be problematic with fruit or vinegar flies due to its strong odor. Fortunately there are some great homespun fly traps you can make.
How have you dealt with vinegar flies? Please share!
Homemade flytrap made from over-ripe kombucha