Save your unusable raws Guaranteed.

[Photon]

Yes absolutely, ethanol evaporates quickly on its own. I use a reflux condenser while doing reflux so that I am not unnecessarily putting the fumes into the carbon filters on fume hood. Also I can reuse the ethanol when I rotovap it. You don’t even have to concentrate down if using poor solvent(like water) just have to time the cooling and supersat different than with out evaporation. Just have to play with timing.

what about the controlled cooling?
Is there any equipment that you'd recommend?

 

[Motojager]

what about the controlled cooling?
Is there any equipment that you'd recommend?

You can just use your hot plate. Make a sand box for better control. If you don't have presets, just kill the heat plate and insulate everything. Doesn’t have to be fancy, can even use towels to insulate. Can just bump plate on if cooling is too quick. I use my plates thermistor and presets to control, but most plates will hold heat well if you just insulate. Just keep separate thermometer in with the solvent as it cools so you can monitor.

 

[Photon]

If anyone needs methanol..this is a good deal..the cops might show up tho lol....

Amazon, free ship
not alot of vendors, i'm sure you'll find it

 

[Thorshammer]

If anyone needs methanol..this is a good deal..the cops might show up tho lol....

Amazon, free ship
not alot of vendors, i'm sure you'll find it
View attachment 379847

I wouldnt use MeOH for testosterone recrystalization its extremely soluble in it so crashing it out is harder you will get way less back.

 

[Thorshammer]

If anyone needs methanol..this is a good deal..the cops might show up tho lol....

Amazon, free ship
not alot of vendors, i'm sure you'll find it
View attachment 379847

I experimented with multiple solvents in tubes first on small amounts MeOH was the worst for the job.

 

[TyLu17]

Okay guys, I had about 3ml left of Dragon primo that was 200mg/ml. It made my crp go crazy, so I knew it had EO in it. Didn't plan on finishing the vial, so why not try to extract the raws from the finished injectable..

Crashed out primo crystals were pretty cool! Now I just have to filter them out and dry

Step 1: BA + EO Defat – Heptane Pulls the Junk

Ice bath the 3 mL brew in a small beaker.
Add 15 mL n-heptane → swirl → instant emulsion.

Science: Heptane (dielectric ~1.9) loves EO, BB, MCT — Primo solubility ~12–15 g/100 mL (even lower than hexane).

Add 3 mL ice-cold distilled H₂O → swirl gently.
Science: BA is 100 % water-soluble → jumps out. EO/BB stay in heptane.
Chill 5 min → bottom aqueous layer (BA + H₂O) separates.
Syringe out bottom → discard.
Repeat water pull 1× (another 3 mL H₂O).
Result: ~18 mL heptane layer = Primo + BB + EO + oil. BA gone.

Step 2: Primo → 50/50 IPA/H₂O (BB Stays in Heptane)

Transfer heptane layer to sep funnel

Pre-make 50/50 IPA/H₂O: 37.5 mL IPA + 37.5 mL H₂O → chill
Add 15 mL cold 50/50 IPA/H₂O to heptane layer.
Invert gently 25× (no shaking) → stand 10 min in freezer.

Science:
Primo-Enanthate → >40 g/100 mL in 50 % IPA.
BB → 0.05 g/100 mL in 50 % IPA → 99.9 % stays in heptane.
EO + MCT → insoluble in 50 % IPA → stay top.
Drain bottom IPA layer → Beaker #1.
Repeat 4 more times (5× total, 15 mL fresh 50/50 each).
Pulls 4–5 are nearly clear → you’re done.
Result: ~75 mL IPA layer = Primo
Heptane layer = BB + EO + oil (discard).

Step 3: Dry the IPA – MgSO₄ Kills Water
Combined all 5 IPA pulls (~75 mL).
Add 12 g anhydrous MgSO₄ in 3 g portions, swirling after each.
Science: 1 g MgSO₄ binds ~0.9 mL H₂O → 12 g dries ~37 mL water in the mix.
Swirl 10–15 min → dry sand texture (no clumps).
Filter out MgSO with Buchner funnel
Result: Water <0.1 %

Step 4: Crystallize – Reduce + Cold Heptane Crash
Fan-blow or low heat (<50 °C) the 70 mL IPA → reduce to ~1.5–2 mL.
Add 2 mL ice-cold n-heptane → instant snowstorm.
Chill 30 min in freezer.
Filter put crystals with 100 mesh nylon fabric over a bowel
Wash crystals with 2 × 2.5 mL ice-cold heptane.
Air-dry or vacuum dry crystals.

I stumbled across this again while browsing.

Would this process also be possible with DHB and Test E or U?

I have a few vials (15-20 per compound ) and probably won't be able to use them up anytime soon. So this would be the perfect alternative before the oil goes rancid.

 

[Thorshammer]

I stumbled across this again while browsing.

Would this process also be possible with DHB and Test E or U?

I have a few vials (15-20 per compound ) and probably won't be able to use them up anytime soon. So this would be the perfect alternative before the oil goes rancid.

Yes, but if you have to go through the whole process of extraction from finished oil you can wait till the oil goes bad it doesnthurt the testosterone if you are extracting it. I wouldnt do it as a precaution.

 

[TyLu17]

Yes, but if you have to go through the whole process of extraction from finished oil you can wait till the oil goes bad it doesnthurt the testosterone if you are extracting it. I wouldnt do it as a precaution.

Thanks for your answer.