I have heard if you dry hop while the beer has lots of yeast in suspension, the hop oils will attach to the yeast and settle on the bottom when it clears. It sounds like this is what you are experiencing. I'm far from an expert though so take that for what it is worth...
No yeast, no beer. No beer, no civilization. Therefore, we really have yeast to thank for all our modern-day conveniences and tasty beer
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