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- #11
How long was bag out in elements...and how did flies get into sealed bag?
Do you raise BSF?
The bag was outside for longer than I wanted / expected... maybe a month

I'm guessing the BSF's either sneaked-in somehow or maybe even laid eggs outside and they worked their way in?
We've raised BSF's before. They are naturally around here and we find them in our compost bin from time to time.