They’re attracted to the smell of fermentation. That’s why they love your vinegar, your kombucha, and that open bottle of beer you forgot on the counter.
They’re also drawn to carbon dioxide. So when you breathe near them, you’re basically saying, “Hey, dinner is over here!” Rude.
I once saw a fly land on the rim of my vinegar bottle, take a sip, and then do a little dance. It was either a victory wiggle or a drunken stumble. Both are valid.
The Unspoken Rule of the Kitchen
If you see one fruit fly, there are twenty more you haven’t seen. They’re the mafia of the kitchen: one appears, and the whole family is hiding in the shadows.
How to Get Rid of Fruit Flies in Your Kitchen Naturally - Foodiosity
You can try to be clean, but they’ll find your weakness. Maybe it’s a single grape that rolled under the fridge.
Or maybe it’s that bottle of balsamic you’ve been “saving” for a special occasion. Special occasion is now their funeral.