This post is about q21q21's writeup and the questions are about handling/converting the full-spectrum-acetate to a freebase.  Still not sure which solvent will be used for the pulls though, sorry.
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GOALS:1.  To obtain a full-spectrum jungle spice (
not separated from the N, N-DMT) following q21q21's writeup and end with a smokable freebase.
2.  To use one part of this full-spectrum "jimjam" dissolved along with one equal part of pure, crystal N, N-DMT, dissolved in alcohol and soaked into some mullein and other herbs before being dried.
3.  To become more at one with the all; And to emanate love.
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QUESTIONS:1.  (pertaining to goal #1) 
Instead of evaporating my solvent I can add acetic acid (vinegar) to the solvent, than separate that layer of vinegar---- Iam than left with a vinegar solution with the full spectrum acetate which now would be good for consumption but not as a freebase for smoking. 

   Is the easiest method to convert the acetate to a freebase to simply heat-dry/evaporate the vinegar?
***My idea for this heated evaporation of the vinegar is to evaporate in a medium-sized pyrex dish that is placed inside of another large-sized pyrex dish hot canola oil bath-- I'll keep the oil 
close to 100°C, 212°F.  Once it is dried for a bit at this temperature it should be all be a freebase, right?
2.  (pertaining to goal #2) 

  To make changa or a changa-style infusion can I simply dissolve the aforementioned dried jimjam in 91% isopropyl?  
Once I find out where a local chemical-supply place is I guess I'll go ask nicely if I can purchase 99% ethyl or isopropyl, but if i can't, is the 91% alright?
3.  Maybe Iam overthinking the following easy step, but indulge me for a second. 

  Is there a single "best" cover for an evaporation dish when evaporating or reducing your non polar solvent?  
What Iam getting at is stitching together a cover made from monofilament mesh material with a micron rating that wouldn't allow contaminants through without hampering air-flow too much.  Iam not sure what micron size the screen should be, that's to be determined.  Am I just overthinking this step; 

  should I just tape down a single layer of clean t-shirt material and stop thinking about this?
Peace all.
arrive without traveling.