Sometimes a little moisture from either steam or the atmosphere can find its way into the oil during the brew process. Heating the oil up causes a large increase in its solubility, for both your hormones and for other environmental stuff, namely water vapor. Trust me even bottles from the same larger batch can show differences with something called cloud point.

It goes away because again, heating it just a little will allow the water vapor to go from emulsified in the oil, to disolved in it.

Your correct, it doesnt look very pretty but itl still do the job. Just decrease the exposure time to air before it goes through the filter, and remember to brew when it isnt too humid.

Yeah, clears it up. FYI Running the AC will take the humidity out of air.

True dat

So you guys are basically saying it's moisture that got mixed with the oil in those particular vials? ...Hm. Thanks for the input. Would I be better off cooling the oil down to room temperature or lower before combining it with hormone/solvent mix and filtering? Usually I just try to get it below 50 deg. C. so it won't wreck the filter.

What if I get a dehumidifier and run that in the area where I'm cooking? I don't have central AC.