What is "freeze precip"?

[behindthelight]

after you perform the pulls over your mimosa/lye solution and you separate your DMT saturated solvent, you can stick your solvent in the freezer for ir to degrade its solvent capacities and hence precipitating your spice to the bottom of the flask.

 

[d*l*b]

Once you have pulled your solvent from the basic solution, and as long as it is saturated enough (it will either be clouded or will cloud if you blow gently on it), you put it in a sealed container in the freezer. Due to the fact that DMT is not very soluble in the solvent at a very low temperature it will drop out (precipate).

 

[The Day Tripper]

Freeze precipitation is putting a reduced volume of either naptha/bestine/heptane in your freezer, where the reduced solubility of the alkaloids in the solvent causes them to precipitate into very clean crystals.

The best way to do it imo, is to combine all your np pulls, and evap it down until the solvent starts to get cloudy. Then pour it in to either a sealable dish with lots of surface area (easier to scrape, but naptha can get into your freezer if you are not careful to seal it well), or a small mason jar. Freeze it over 1-3 days and lots of alkaloids will crystallize out and on to the mason jar or glass surface if you use an evap dish. Pour off your naptha, saving for another precipitation, and be sure to catch any "floaties" that may be caught up in your solvent.

Scrape, dry, and recrystallize/wash to your liking then enjoy.

Good luck.