Hello everyone, first of all i'd like to thanks all of you who helped with this process, i've been reading and reading a lot of posts in the past in order to study the perfect way to approach my first extraction, and it wouldn't be possible without this board

I've tried today my first extraction with Noman tek, which seemed easier and faster. I only have a couple of questions regarding the freeze precipitation:
1. should i just put in the pyrex all of the pulls i did, or separate pulls work best?
2. this is the most important one, for me. I'm kinda worried about contaminating my freezer (it's not only mine but also my girlfriends' and food in it, i thought about closing it with its lid, then wrapping it in plastic wrap and also putting all of it inside a plastic ziplock container. Should this be enough, or are there any other advice you think i should follow? I really don't wanna mess up my freezer or the food inside...

Thanks again!

You can separate them or do it all in one, just mind the more solvent you have the bigger the container will have to be. Personally, I get impatient, so I put about 3 50ml pulls in a half-pint mason jar and make sure to not let the solvent touch the lid. Putting it in a half-pint mason jar and making sure it's upright will eliminate any spillage.

Ok thanks, so i guess as long as the container is airtight closed should be fine. I did 50 g of barks and i'm letting the pull evaporate a little right now, so it shouldn't take too long.
Tomorrow i won't be home 'till late night, so i was thinking of leaving the tray in the freezer all friday and check it on sunday morning, i hope 36 hours is not too long

If it's sealed well you'll likely have very little contamination.

Evaporate the solvent by about 40% or until the solvent is saturated with DMT.

And there's no such thing as too long with freeze precipitation

One love

By very little you mean it's possible to contaminate the food even if it's sealed? In that case i'm rethinking the all freeze precipitation thing, i wonder if it wouldn't be safer to just let it all evaporate in a few days outside...

As long as it's sealed, the very little that can possibly evaporate is negligible. Also, DMT crashes out of naphtha in the freezer relatively quickly. If you're so concerned about contamination, maybe you should save doing this for when you have free-time.

Ok thanks, these days are actually all of the free time i'm gonna get for a while
I'll try to seal everything to the max, and hope everything stays inside

Yeah, what Jupiter Man said. Sorry, I was just trying to be specific. I've read about people getting their freezer foods contaminated, but that's usually when they used plastic wrap or something and they could taste it in their foods.

I personally have a mini fridge for most of my projects that has a freezer too. There's no food in the freezer spot.

You'll know if a good amount evaporated in the freezer because when you open it you'll smell the solvent.

One love

Thanks for the replies... I'll try to move the food somewhere else for the time being...

Just for the sake of understanding: if i were to just evaporate the naphtha out in the air, would the product be fine as it is or would it need a process to purify it? And how long would you guys think it would take to evaporate 30 ml of naphtha in a jar out in the open? A couple of days?

You could do that, but it may kind of gooey in consistency and lack crystals.

30ml in a flat dish should completely evaporate in less than an hour.

One love

So, i wanted to thank everyone posting on this amazing board for helping even without knowing...
I've been tried two different extractions in the last months and i think they went pretty well, especially this last one i'm doing...
Always with noman tek, i extracted from 50 g of mimosa: the first time only got like 0.250 grams, not much but enough to get to grips with the substance. Me and my friends loved the experience!

I tried again and i'm pulling a lot more than before, maybe because i'm mixing the mixture more vigorously... I still have some questions tho:

1) When i'm doing pulls with naphta, i let the mhrb sit with lye for about 1 hours, then proceed with first pull, mix 3-4 times and then put in freezer...
But For the following 3 pulls i let the naphta sit in the mixture a lot more, maybe even a day, always mixing when i get the chance... Is this too long to keep the naphta inside? I'm asking because i see the the second, third and fourth pull always look different than the first, like sometimes i'm scraping off ice instead of dmt, the crystals don't always look like snowflakes but also like strips of dmt, kinda like road tracks on a snowy road... Maybe because i re-used the same pyrex i already used for the previous pull without washing it?

2) with the last pull, when i got the pyrex out of the freezer i got some drops of condensation... I tried to scrape the spice off anyway but only got like some paste... Should i just let it dry or should i do something else with the wet dmt? Also, in the future should i do something different to prevent condensation?

3) Once i'm finished with my mhrb/Lye mixture, what should i do with it? The first time i Just tossed it away, but maybe there are other uses i'm not aware of...

Thanks in advance

Hey again

1. It's probably longer than necessary, but I don't think it's too long. The dish, if not washed first, will have "canals" that will create patterns based off of how you scraped it the first time.

2. You can see how it looks after it dries, do a mini A/B, or re-x.

3. It'll clean out your drains well. It can also be used as a dye I suppose. I typically flush mine after residual solvent has evaporated.

Be well and congratulations.

One love

Ok thanks a lot for the quick answer... It's a very rewarding process, i can see why so many people are so interested on extractions!

Just so i understand, what would it imply to keep the naphta for too long in the solution, like for a couple of days? I have naphtha inside the Solution that i haven't had time to suck out, and it's been there a couple of days now... I didn't think it could stay inside for too long... Should i try the last pull and precipitation anyway?

As long as the lid is on, you could probably go upwards towards a month or even more. If it's uncovered you'd have to worry about it evaporating off of the top. Otherwise, the most I can imagine occurring is some emulsion, but all else should be fine The solvent won't negatively impact the soup by sitting in it for extended periods.

One love

Due to my busy schedule I have had the naptha in the soup for over a week at given times. As long as you have a partial seal over the top it is totally fine ime. The only issue you'd have is if you didn't have a proper seal over the top, then you could get contamination (i.e dust particles, etc.), but I've never had that issue. The thing that worries me the most is just wasting the naptha via evaporation. I've not been doing this as long as a lot of these guys, so if one of them says different, then I'd take their words for it, but this is what I've discovered in my limited experiments.

Oh ok, thanks... I thought it could negatively impact the Final product... Thanks a lot then...

Of course

Nonpolar solvents won't hurt the molecule. DMT is typically pretty stable in nonpolar solvents as long as it's not resting in high heat, at which point the solvent will evaporate and the DMT can degrade.

One love

Excessively long contact with base could in principle lead to increased polymerisation of the DMT leading to a more deeply coloured, gooey product. The goo is also less soluble in naphtha, requiring more heating and maybe a heavier, less volatile naphtha should be used as a result.

If base soup has been standing for a fair while it may be worth pulling with another solvent such as toluene, xylene or limonene and recovering the product with an acidic back-extraction of some kind. A further alternative would be re-acidifying the soup in order to break down much of the alkaloid polymerisation and re-basifying as a sort of reset method for the extraction.