I have searched around and haven't been able to find an answer to my question. I looked up some scientific data and can't decipher it. Here's the deal:

Say there was some seemingly exhausted MHRB from a STB tek. If someone were to strain out the plant matter through triple layers of old t-shirts, then place the liquid in a bell jar. Then the person adds 200 ml of xylene. Agitates well over the course of a day and then decants to pyrex baking dishes.

If the dishes were placed in an open barn (covered by pantyhose to keep dust out) with plenty of airflow, but in winter weather (averaging 35 degrees fahrenheit) would the xylene evaporate? Or will it need some encouragement? The wind blows forward and the wind blows back. Will a fan be needed? Is it too cold for the solvent to evaporate?

There seems to be some haziness on what to do with the resulting dried material. Naptha wash? Some sort of cleaning step? Or is it needed at all? Can anyone point to a detailed tek for this?

Thanks for your help.

What about salting out the xylene with FASA (for precipitating fumarates), which would be idea, or salt it with vinegar? This way no need to evap nasty xylene, and you can also reuse it afterwards (if you do FASA you have to wash with water a few times first to remove acetone)

If you do with FASA the fumarates precipitate straight away, then you just decant/filter. Then if you want freebase crystals, convert it in any of the ways as the WIKI says. If vinegar you have to evaporate the vinegar, and then convert it to freebase, also check BLAB tek in the wiki for instructions

I'd give one of the "salting" ideas a shot; while it would be more work, it took my friends and I several weeks to evap about 150mL of xylene at 60-70 degrees F, I'm imagining 200mL at 35 would take a bit longer, just a guess though.

Thanks.
I think I'll try FASA. Doesn't sound too difficult. Any opinions on the best method for filtering? Buchner filter? Coffee filters? Will I get full spectrum with this method? Have there been any comparisons made between evapped xylene pulls and FASA converted to FB? I am so confused by the whole jungle thing. Is there a real difference or is it just placebo? Or does anyone know?

I personally have a feeling all this jungle story is misleading and think differences are most likely self-suggestion.

We were planning some experiments regarding that, here: https://www.dmt-nexus.me...aspx?g=posts&t=18175

but so far nothing was done yet.

You can be a part of the experiment and save a bit of xylene to evap, and the other part do FASA (and later convert), and then test the differences yourself.

Regarding filtering, coffee filter will work just fine, buchner + propper filter too, whatever is easier for you.

Good luck and post back results

it is my understanding that to get the "full spectrum" one would use xylene/fasa on new bark. if you use 'spent' bark, most, or some of the nn has already been mined out so whats left will not be "full spectrum"

Yeah, when I was writing the post I had put the line "...Or full-ish" in there, but took it out. I've read that there is a lot of nn left, so while the resulting stuff wouldn't be "full spectrum" in in a quantitative sense, the full spectrum of alkaloids would still be represented in some quantity. If I understand what I've been reading, that should be the case, right?
There seems to be a lot of controversy in this area, so I'm just going to do a few experiments with no (or as few) expectations as possible.

@endlessness : I'd love to help with the testing to help clear this issue up a little bit. I'll let you know what's happening as things progress. I guess I could do yellow vs. white vs. evappped xylene "jungle" vs. FASA "Jungle". I have a friend who would most likely be willing to help set up and do the blind study.