Mold or ?
There's a good discussion on the PSD Forum about this for pressed flake. Mold in pipe tobacco is tricky, you don't just wipe it off a wrapper. There's salts, sugars, and evaporates that can leave white spots on tobacco too. It gets good starting on page four.
https://pipesmokersdens.com/threads/kbv-byronic-slices-potential-mold.9594/page-4

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Great read I have some KBV slices I need to open up and check the status of it. Once I can find some jars that is.
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I picked up a USB Microscope to look at tobacco, here's it's maiden voyage connected to my phone looking at an old GH Revor Plug which had some light stuff on the surface.
After reading on PSD, I decided before the microscope arrived that this probably wasn't mold, and some of the advise mentioned that the tobacco would generally smell pretty bad if it was moldy and this smells pretty good. Looking forward to trying it. Here's the close ups.
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Another good thread on PSD: https://pipesmokersdens.com/threads/is-this-mold.6760/
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Interesting Chris, wonder what that stuff is then?
Salts, evaporates, sugars, something from the blend.
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