We come across this issue often when beginning SPD operations. It normally comes from improper fractionation, or contamination in the starting material. It can be aided with numerous remediation processes, but you havent given us enough information to really direct you to specifics.
heres a thread about this same issue from last week.
Other than that, make sure to search through the Hash and stuff catagories
If you take it low and slow I’ve found that there is less smell. There are 2 terps with boiling points between thc and cbd/cbn which I think has some of that smell. Or at least I’ve noticed less of it when I do my runs at 175c vapor, not letting it get above 185c at any time.
Hot condenser Tek help my first pass smell quite a bit better and made it easier to separate out those fractions on a fast first pass. Still need to run at least another pass to get it out totally.
I’ve got completely clean smelling first pass by doing the @Beaker Tek
Get your cannabinoid layer into a hep/hex solution. Then add equal part methanol, then louche with water to a 5% methanol to water. Repeat this 5-6x (it’s a whole bunch of water. Like 100+L for 1kg of distillate). But the resulting distillate is the cleanest tasting/smelling first pass I’ve ever had.
sonication is a good method. Or so I have heard. Where I work no one has time to remove the smell. I think Wipe film disty smells pretty bad, but its like a good bad smell.
Hello, I have got thx destilate which smell like rubber and on top of it is making pink/purple belt, can I purify it somehow? If you could give me some advice please feel free contact me on email.: miso.stasi@gmail.com thx
Im not the spd expert but i had issue once when i didnt winterize good enough and had a weird taste. I rewinterized and reran and in that case worked for me?