Well, my friend got a pretty low yield, when all was said and done. About 200-225 mg from 100 grams of dried, cored, peeled San Pedro. Not giving up though. Next time, he is going to stir things up better at each step. Suspicion is that CAOH was not mixed enough initially, and that perhaps vinegar not mixed enough, though one would think that that problem would have been mitigated by the several repeated vinegar additions. We shall see.

The San Pedro might also have been low quality, of course. Grown in pots, starting years ago, by a relative who grew it because of its beauty, not its chemistry.

the Florida d-limonene supplier has food grade (95%) and pure (98%) for $34 and $54 respectively. Is it advisable to buy the pure grade, or is the food grade sufficient?

Food grade is sufficient.

Just started my second mesc extraction. After doing Vovin's, this feels like a BREEZE.

I also started Jorkest's limo MHRB extraction, and how i YEARN for a DMT dry tek, I hate hate HATE doing to many liquid/liquid transfers!!! I don't care what people say, next time I try a DMT extraction, I'm doing it DRY, I'll just be patient and vigorous with the mixing, and hopefully the yields won't stink

My friend is feeling stupid. After thinking the yield was negligible, he scraped the clear portions of the pyrex dishes with a razor blade, and retrieved an additional approx. 800 mg of waxy-but-crystaline (if that makes sense), white material. Much better. Testing 120 mg with coffee on an empty stomach had almost no effect, however. He is not sure it had ANY effect, actually, except placebo.

Not everyone feels effects from low doses. I took 100mgs of the tar from my third and fourth pulls with yerba mate, 4 datura seeds, and some nice dark chocolate, but it never gave me any strong sensations. I actually got called in to work (ugh) and was able to perform well. I did feel good though.

My same friend took the remaining 750mg, and still felt very little. A very pleasant series of waves of mild euphoria, over about 8 hours, but nothing approaching tripping. This guy trips hard on 1 to 2 grams of mushrooms. Must not be the same for his tolerance with dopamine based substances. Or is it possible that the white, waxy result he got from the d-limonene\vinegar extraction was not what he expected it to be, but some non-psychoactive substance, and that he actually experienced a low dose, even though he took 750 mg of the product? Any ideas? Hard to believe that 750mg of mescaline would have been such an incredibly mild experience.