I’ve seen this before on a thc distillation early on in my career. It happened on a second pass terpene strip in a wfe. It smelled awful and was foamy coming off and waxy after we depressurized. This was pre legalization days so idk what it was or could have been.
What where your parameters when this started and finished
If head temp and vacuum depth are known bp at atmospheric pressure can be calculated and the search can be narrowed down and begin
I don’t envy the cleaning after running pesticide treated material, too. The invisible enemy likes to linger if not done properly. Vaya con Dios y buena suerte amigo.
Anyone had any dealings with reclaiming etoh from pesti material ? I’ve quarantined any etoh used to process this shit as in sure there’s contamination in it even after being recovered
Post redistillation after coming into contact with as many as seven different pesticides, we sent some out for testing. It was 190 proof organic ethanol, and it came back completely clean. Didn’t even fraction any off. Not sure how it would be with CDA12A, if that’s what you’re using. Seems like the pesticides want to stick with the crude (and on down the line).
We used IPA and alconox in alternating washes. Finished with distilled water, and we tossed (in accordance with local regulations) all of the cleaning solvents. Popped again on different biomass, and repeated the cleanings ad infinitum and sprayed for clean equipment. Absolutely maddening.
Found residual on the equipment when wiped. I couldn’t find rhyme or reason why it stuck better to some things than others, but we also sent swabs from various pieces of equipment when we sent out the booze for testing and those tested hot but the ethanol didn’t. It stuck to glass, metal, and various gasket material types, but the ethanol was okay.
Edit: It could also have something to do with the types of pesticides we had present. Spinosad, bifenthrin, and I really don’t remember the rest. I’m not with that lab anymore, so sorry about not remembering the rest or having access to those results.
Hold on Barney !!
So your equipment was contaminated
But your solvent wasn’t
The pesticides had greater affinity to certain materials than others
Man really to bad all these test can t be retrieved
Interesting data on pesticide affinity