So my distillate is coming out quite pretty but with a fairly horrible odor. I know that there are a few ways that I can do remediation but I was hoping that there might be some pointers on how to minimize.
I believe it to be phytols from the chlorophyll breakdown, am I missing something?
thanks! you just re-enforced my instincts on the vacuum oven. I was thinking of running an N2 purge in and then using low temps ~70C over a longer period of time to avoid oxidation.
I know many people hate on OSS, but I have learned a lot from them; in person and in videos.
Here is where they talk about just re-boiling instead of doing a full 2nd pass. For some reason they call it a “2nd pass” but it never makes it over the head, so it’s not really 2nd pass distillate. Just 1st pass with a re-boil to remove the stank.
What are your condenser temps set at? Both the top and path?
Also how quickly do you pop THC, do you keep increasing mantle temps with the head temps automatically?
If you are having trouble with vacuum there are some steps you can take to test options.
Make sure system is clean and dry
Check/change pump oil because of terpenes
Check all clamps and gaskets. Gaskets, especially those exposes to heat, do need to be replaced. Also make sure one of the O-rings isn’t rolled. They have seams that need to be lined up.
Pull down vacuum as far as possible.
If after step 4 you are still having trouble, send an email to Mark at mark.schmidt@brinstrument.com, he will be able to send you a document containing more detail about sequentially finding a vacuum leak. I hope this helps a little!
Generally you can just run a second pass to clean that up as long as you pay attention to your fractions. Most of that should come off in the head and the rest in the tails. Your main body shouldn’t have much of a smell to it really. If you’re worried about compromising your THC just remember that residence time matters along with the PH of your source material. Your second pass should have as low a vacuum as possible so you can run at the lowest temps available to you.
Just do a 2nd pass, it should clean up the smell if you have removed all the heads. I usually just wait until the oil is dripping clear and then wait for like 10 to 20 grams, then flip to the next flask.