That would make their dirt magic…
You’ve most likely got both water AND media in your hash.
5um won’t keep the fines out of your hash.
Try rinsing your freshly packed CRC with solvent into a clean collection pot.
Guarantee you’ll see dust in your collection.
Fill two jars with media. Weigh them. Leave one open for a couple of weeks. Weigh it daily and confirm the weight doesn’t change (here in OR it will. Least at this time of year).
The water can be removed via more time in your vac oven (you will loose terps)