I have used this many times with great results and thought I would share.


Break 1-Pound of Mimosa Hostilis rootbark into 1" pieces using new heavy-duty
wirecutters, then grind it all up in a glass-topped blender, a little at a time.

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Polar Extraction: Premix in an empty 1-Gallon plastic jug: 1-Quart White Vinegar & 3-Quarts Water. Put the ground up Mimosa in a 3-Liter crockpot , then fill it with the water-vinegar solution. Stir well and turn it on "high". After 2 hours,
remove the crockpot  ceramic liner, hold the lid on slightly offset, and pour off
most of the liquid into a 1-gallon wide-mouthed glass or stainless container.
Add the remaining water-vinegar solution to the crockpot  again. Stir well and
turn it on "high". After 2 hours, remove the crockpot  ceramic liner, hold the
lid on slightly offset, and pour off all of the liquid into the same container
again. Discard the rootbark fiber and save the two combined extractions in the
1-gallon container. Allow the vegetable particles in the extraction in the
1-gallon container to settle to the bottom overnight. Then pour off the liquid
into an empty 1-Gallon glass wine jug, being careful not to pour off any of the
vegetable sludge at the bottom. Discard the sludge and keep the contents of the
wine jug.

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Basification: Premix in advance a solution of: 5 heaping Tablespoons (70grams) of Lye (Lowes Hardware, item# 146450 "Roebic Crystal Drain Opener") SLOWLY added to 1-Pint of warm water. Stir well. Slowly add this solution to the jug, then cap it. Gently tilt the wine jug back and forth for 1 full minute to mix.

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Nonpolar Extraction: Add 250ml of (Ace Hardware) VM&P Naptha  to the wine jug. Then add exactly enough warm water to the jug to raise the liquid level to an inch below the top. Cap the jug. Gently tilt the wine jug slowly back and forth for 5 full minutes to mix the contents. Allow the jug to sit undisturbed on a table for at least 4 hours. There should now be two layers visible in the jug, a lower dark one and a smaller clear one on top filling the neck of the jug. Use a glass turkey baster to suck up the top clear layer into a pint mason jar. Be careful NOT to suck up any of the lower brown foam/black liquid layer into the mason jar.

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Freeze-precipitation/wash: place the sealed mason jar in a FREEZER for 3 days
to precipitate the crystals. Prepare a filter setup by placing a funnel into
a quart mason jar and putting a small coffee filter paper into the funnel.
Shake the Naptha  in the mason jar strongly to stir up all the crystals at the
bottom and quickly pour while still very cold into the funnel for filtering.
Impure yellow-white DMT  crystals will be seen on the coffee filter paper.
Allow the crystals to completely dry out on the filter paper in the funnel.
Chill a bottle of NON-SOAPY clear Ammonium Hydroxide(Ace Hardware Janitorial
Strength Ammonia) in a refrigerator. Slowly pour 35ml of the cold ammonia over
the crystals (still in the filter paper) to wash them. Remove the filter paper
from the funnel, spread it out flat and allow the crystals to COMPLETELY dry out.
You will now have 2-1/2 grams of white crystal DMT . Mix it with some dried
parsley and smoke a little in your favorite pipe!...Marsofold

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Optional Tips:

#1 Grind the rootbark up to 1mm diameter or smaller. Finer is better.

#2 Use three water-vinegar extractions rather than two. Divide up the
water-vinegar mix so that you roughly use 50% for the first extraction,25% for
the second, and 25% for the third extraction. After the last extraction press
out the fiber to squeeze the last bit of liquid from it.

#3 Basify to a pH  of 13. Underbasification is the most common reason for a poor
yield. If you don't have pH  papers, basify till it turns black, then add an
additional 25% of whatever amount of basification solution you used. This is to
guarantee that you're at a pH  of 13. The brown foam you see floating on top of
the basified extract after tilting the jug should flatten out to a thickness of
no more than 1/2" after 45 minutes or so if you've used enough lye.
Add a bit more lye and re-tilt the jug to mix if it's thicker than that.

#4 Naptha : Dividing the Naptha  amount into two "pulls", then combining them into the same mason jar for freezing will raise the yield by 10%. The best way of extracting if you aren't sure of the yield is to use a slight excess to extract
and evaporate it down with a small fan to 1/3 of the original volume. THEN freeze it. This will pretty much guarantee excellent results. For example: For a pound of rootbark use 300 milliliters of Naptha  to extract. Evaporate it down to
100 milliliters. Then freeze it and filter out the crystals. You must very quickly filter it within a minute or two after removal from the freezer so that it doesn't have any time to warm up. And your freezer can't be marginally cold. If it doesn't freeze ice cream HARD, then it isn't cold enough.

#5 A small marble in the Naptha  rattled around in the mason jar will loosen up
the crystals for filtering. It won't hurt anything to pour it out with the crystals into the filter paper. A buchner funnel is the best kind for filtering.

#6 Washing: Be sure that the crystals are absolutely DRY before washing.
Weigh them and use 14ml of chilled ammonium hydroxide per gram of crystals.     

That is 1.43 grams from my first pull. I still have the bark to do more pulls but I need to get some more naptha first.

Same, BBB. I got 1.4 grams from 228 grams of root bark.

BBB's bark is poor quality.  It's Best to go with a supplier that has Mexican bark as opposed to Brazilian.  Mexican bark typically has 2-3 times as much.   

One should be able to grow decent sized crystals of very pure DMT by doing an alternating freeze, evaporate technique. As in, the solution would be evaporated on a tray of some sort, and then frozen for a little while. Once crystals start forming, the solution would be evaporated further. The solution would then be frozen when a sufficient amount of solvent has evaporated. This cycle would be repeated until there are a good amount of white/clear prisms on the evaporating dish. At a point, the solvent could be decanted and the crystals collected, washed, and dried.

I'll try to dig up what I can about this method, I'll post more if I find anything.

All of the butane would evaporate off, leaving behind the impurities that are meant to be removed in recrystallization.

Just don't buy powdered or even shredded bark and you will bee ok. Marsofold's extraction is the best one out there IMO...

You don't know what you're talking about.
prepowdered bark is far easier than hours of difficult shredding and grinding.


Tips for would-be DMT extractors:

1) Use an electric fan heater to
 evaporate your solvent at the
end of the day, far quicker;
but be careful - please.

2) "STB" method works well; just get your
mimosa/water mix to ph13.5 with NaOH,
then extract with small amounts of naptha,
or xylene.

3) DMT Fumarate can be prepared easilly
and is more stable. It forms beautiful crystals
and I suggest you convert your freebase
to the fumarate salt for long term storage.

I believe the slower the evaporation the larger crystal formation as it gives the time needed to grow them. Also adding a "seed" crystal for the others to start forming to and building on.

Marsofold's tek is outdated.

Hint: Don't wash your crystals with ammonia unless you like loss. Wash your naptha extract with 2x20ml sodium carbonate solution to remove traces of NaOH. Use HCl or phosphoric acid for the acid boil you need ph3-4.  Read the DMT Handbook (google) its a world apart from these kitchen teks but just as doable.