Hey, I have some red goo which I want to use to make changa.
I tried it two times with acetone and caapi, and both times there has somehow been a loss of goo in the end product. For example this time i used 0.7g goo and 0.7g caapi leaf, the end product is 1.03g..
anybody know how this can happen?

Sounds like a weighing error to me. Are you weighing the product in the evap dish or did you scrape it into something else?

If the spice is really gooey, I often don't worry about using a solvent to infuse it (since the DMT is dissolved in the fats often associated with yellow/red goos). If your goo runs with gravity at all (even very slowly) you can just thoroughly mix it into the herb and use as is. Doing it in this manner gives a very sticky "wet" product that burns quite slow but which works just as well IMO

Yeah I did scrape it and weighed it with a razor blade. Hm yeah maybe it was a weighing error but it happened twice already.. next time ill be extra careful.

That tek soudns interesting but i would be worried about uneven distribution on the leaf. Do you heat it during the mixing?

Are you certain that your goo was fully dry ? The goo may have possibly contained some excess solvent in it, that evaporated along with the acetone. That is the only plausible explanation I can think of, goo will not simply just 'disappear'. Apart from this, can only really be a weighing error.

True, some of the fats could be volatilised with acetone. probably less so with IPA, if you're really worried about that weight, try 100% isopropyl next batch and see what happens.

I don't understand this ^, how fat can volatilise ?.
JustCurious's theory about solvent is more credible imo.

Okey, so this actually happened again..

Weighing error is outruled by now..

I dissolved 0.2 full spectrum goo in acetone and poured it on 0.8g caapi leaf.
After drying it the scale said 0.85.
This is really weired..

Is it possible that there are some oils in the goo, which would evaporate after being dissolved?

Maybe next time i try to make the Changa without solvent, but the goo is so sticky and really a pain to handle..

Possible explanations:
1. Mechanical losses: some of the dmt sticks to the vessel you mixed the dissolved dmt and herb material in. losing 0.05 gram is not much and could easily be what is left stuck on the surface of the vessel.
2. Water loss: most herbs are not 100% anhydrous, or they would crumble and dustify excessively. Between 5% to 20% is not an unusual amount of residual moisture. When you evaporate the solvent from the herb, some of the residual water can also evaporate, causing weight loss.
3. Weighing errors or inaccuracy: You are probably using one of those cheap "gem" scales, like most people. Proper laboratory scales are very expensive - for a reason.

Pitubo, that are some pretty good and possibly accurate explanations.
Didnt think about the water, and yes some loss for sure is "mechanical"..

Next time i will do a bigger amount at once so the loss should stay approximately the same but smaller compared to the whole amount.

Could be those pesky machine elves stopping the law of conservation of matter from working in our limited 3 dimensional world

Indeed, you'd be surprised at how much just a tiny bit of leftover solvent can weigh. Usually when I make enhanced leaf, I obtain almost complete recovery of the combined mass of leaf+DMT (within 0.02g usually). There's usually some goo still stuck to the bowl, but I just wipe it up with the leaf before it's totally dry.

Good idea to do larger batches, the larger the batch, the less likely it is to lose some on the sides of the container, etc.