The manufacturer of my equipment does not recommend me to use it in subcritical mode .
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Thanks @Costello , @PolyC for your useful info . I will try all proposals and after I have the results I will share them here .
Can you elaborate why…
It just my laymans opinion that a supercrit, should easy run sub.
Just because the materials are on par for 400bar and more… But could have something to do with other parts of equipment not suited.
Sorry dont want to be an ass, just seems odd…
Hope you succed!
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Hi ,honestly I don’t know but I will ask the manufacturer to explain why I can’t use in subcrit mode .
Today I distilled 2 runs with crude from 2 types of biomass and I had big surprises while collecting the head.
It has never happened since I distilled …
It has never happened since I distilled . It’s looks like a jam and I believe either they are sugars, waxes, lipids …I really can’t figure out . Anyway ,this shit can be one of my issue and I would appreciate any thoughts about it .
Tomorrow I will focus on winterization as well as to crystalize the bodies from today .
Thx
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Looks like CBD to me, my friend. Confirm with TLC if available. If that’s your heads fraction you’re probably a little too hot!
Sugars won’t ever distill over. It’s possible that it’s waxes but that looks like a lot especially if you winterized. Very likely that it’s CBD.
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Perhaps do an etho h20 test… . If it dissolvess… .
@PolyC when I collect the head I don’t exceed the 160-170 C vapor temperature (depending how I see the vapours in distillation head ) …these were collected between 140-160 C and /180-195 C in flask …Also its looks like a grease and as I know the terpenes is diluting the CBD …in .my opinion is not CBD …I will do the analysis anyway and I’ll let you know
what was your vacuum level?
around 1000 mtorr for head, under 500 mtorr for body
hmm yes that’s maybe not deep enough for CBD
I still think it’s CBD though 
let me know what your analysis concludes.
edit: maybe the clog was affecting your vacuum reading
@PolyC ,please believe me that until I changed to CO2 I never had less 70% CBD in distillate … the average was 73% …in my opinion if you go to anyway to crystallization or through flash is not necessary to keep the vacuum under 300 mtorr or even less…I can tell you from my experience that I had very good results with 1000 mtorr and stirring at 400-500 rpm …a good distillate is depending of many other parameters …
Anyway we will see the analysis of this shit .
hey, I was saying that I agree with you!
At 140-160 vapor temp and 500-1000 mTorr, I would not expect CBD to distill. that’s all I was saying 
But at higher temps, 1000 mTorr is plenty deep to distill CBD. I do believe you, I have done it myself!
Sorry 
… I didn’t understand exactly what you meant … after 14 hours in the lab I’m very tired.
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melt it on a hot plate, what temp does it melt at? if it melts at a low temp its wax
Yes ,it’s wax .I already checked and it melts at low temperature . At least I managed to remove them by distillation and I solved the crystallization . Now I have to improve the winterization. The bad part is that I still have precipitates in solution after 7 days at - 25C and filtered 6 times (at every 24 h) through a 2 micron filter…
Thank you all for info and your support .
You shouldn’t need to filter it 6 times, there’s a few things that may be causing issues.
First off, are you insulating/precooling your filtration unit? If you aren’t or your filtration takes too long, your waxes could be redissolving as the resident heat of the filter warms your dewaxing, wasting a lot of time and energy.
Are you filtering through a cartridge, a bag filter, filter paper, or filter cake? Especially with bag and filter papers you can get some leakage because small particles can make it through, but not as much as you are getting.
-25 isn’t quite cold enough, can you get to -30, or -40 (optimal), that should help it run a bit smoother. I do 48hrs at -35C and that get pretty much everything out in 1 pass with ethanol extraction, you may want 2 passes since you are using CO2.
Are you against using methanol? 80/20 Methanol-water is a common way people dewax, even at room temperature because methanol has such a high affinity for cannabinoids and most everything else drops. I’d recommend it if you can handle it safely without poisoning yourself or staff because it’s much more effective.
Quick disclaimer, I’m more familiar with ethanol extraction compared to CO2 so there may be some newer more reflective methods that I’m neglecting.
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