yeah, that sounds like a safer option, and certainly an easier one to get past the AHJ should the question ever arise. probably can’t get much closer to butane than pentane as far as “who’s coming for the ride”…but I do worry about the (potential) differences in extraction efficiency if I stray from my production solvent.
pretty sure I can also document destroyed for “in-house QC”…never tried flying the Organoleptics: In House QC? METRC designation, but I do feel it’s an important piece of getting this job done right.
I’m wondering about using a 20lb “recovery” tank for the itty bitty CLS, and then taking the potentially contaminated solvent off-site to power one of these (whoops, I mean; “safely incinerate”).
EDIT: although using river rocks here doesn’t sit well with me… it was just a random example of the concept. I’ve made decent cutting edges by heating river rocks…