Just out of curiousity, if i was evaporating my naptha in a room where i spent most of my time could the fumes do much in terms of damage? if i had 3 evaporating at once that is .

really???

this is a TERRIBLE idea......... SWIM gets headaches from the fumes even when he is outside with a mask on.........

Not to mention the fire hazard. I hope you dont smoke cig's or joints while doing that.

Even just plugging your computer in can cause a spark if the room is fully saturated with fumes.

its a HORRIBLE idea to evap indoors, specially if you are inside the room and there's no big ventilation taking the fumes outside

I also agree with the previous posters. It is a horrible idea, safety-wise and health-wise.

Boy, please try to make things the right way, it doesn't take much effort! Whatever happened to freeze precipitation? (hint - crystals without the need to evaporate solvent + potential to reuse the solvent)

No no, thats not where i have been evaporating it. I was just checking since it would be easier. And it's not like it's going to be under my nose, it would be completley out of sight and reach. What are the actual dangers except for it catching fire? and the problem with freeze prep is you have to evap loads of it to get it saturated no?

Commets appreciated! and definetly taken on board but would just like to know the effects of the fumes if not inhaled directly.

Inhaling solvent fumes in a closed space caused SWIM to grow a penis on his forehead. He had to have it surgically removed and properly relocated on his right palm. The whole process was no fun, let along the operation costs. But other things may happen to other folk from continuous exposure to solvent fumes. It ain't the most benign thing!

As for the catching fire, this is a very serious concern. Even though solvent fumes may never reach high enough concentrations to ignite (e.g. if a lighter is lit) the risk is still there and the hazard is not only to your room/flat/house/neighbours etc , but on the community as well. We really do not want the media and the mainstream to get the impression that those who extract spices are a risk to others for whatever reason.

The latter is a very serious concern hence the bashing.

Point made . The only other place i can evap is pretty god damn cold this time of year, and very dirty. Just wondered if it would be ok to do it else where but i wont.

So how do you guys evap before freeze precipitation? Like where etc, or do you maybe heat the solvent before using it to make sure you pull enough that it will precipitate without needing to evap? After alot of reading i never really understand the benefits of freeze precipitation. From friends experience they seem to get generally smaller yields, and you only save 1/3 or a 1/4 of the naphtha you use.

Thats just what i seem to have gathered about this, i may be wrong but more input will be greatly appreciated!

Freeze precipitation does not generate smaller yields, this must be your friend's doing something wrong. In addition, do not forget the vagueness of the term "yield". Yield and purity are reversely correlated. The purer the product the less the "yield" is, whereas the impurer the product the more the "yield" seems. If you just evaporate you'll have the spice plus the impurities. Yield will seem higher but only because of the impurities (fats, oils, other crap). Clean it up with freeze precipitation and you'll have a clean product but a smaller yield basically because the impurities got removed.


Re to freeze-precipitation, solubility of solutes in solvents (e.g. salt in water, spice in naphtha, water in air etc) is a function of temperature and amount of solvent. With only few exceptions warmer solvents hold more solute and colder solvents hold less solute. And bigger amounts of solvent can dissolve more of a solute.

Room temperature or warm naphtha dissolves the spice and pulls it off the basic solution. Put in the freezer and naphtha cannot dissolve the same amount of spice it could when it had room temperature. So the spice crashes out, we call it freeze precipitation. Most fats and oils are very soluble in naphtha and will stay dissolved even if the naphtha is in the freezer.

Should you stick the sollvent in teh freezer and no spice precipitates that is because there's too little spice and it remains soluble even at freezing temperatures. In that case one needs evaporate some of the naphtha and try to freeze precipitation again.

Try this; stick the naphtha in the freezer; spice will precipitate overnight. Then take naphtha out, evaporate half of it and stick it back in the freezer again. Some more will precipitate!

Kk suppose i'll use a friends freezer (mine is a small one IN my fridge grr) and give it a go. Thanks for the information, glad i didn't just risk breathing in the vapour from the naphtha because it seems you all think it could do some daamnn damage! Hehe Thanks all!

I put my naphtha on a window ledge to evaporate. I put a fan in front of it to help direct any fumes back outside. So far I've had no problems with smelling it. In fact, you can only smell it if you walk right up and sniff like 5 inches away from it. I'm still alive and well

Having said that, I use a freezer to precip the DMT into a jar, then pour it off. I guess if your just straight evaporating with no freezer this could be an issue. Trying to evap my naphtha completely would take a decade
Another solution is to simply use less naphtha per pull. If you use less and agitate it thoroughly you'll end up with less naphtha to evaporate. It may take more pulls to get all the DMT though.

If your freezer is cold enough you can probably still use it. Find a small enough jar that will fit in there and use that. Depends how big your extraction is, but with 50g mimosa or even 100g you only need to freeze precip about 50ml of liquid. Get several jars.

just bumping this to ask a quick question.

a friend of a friend will consider extracting soon, but he has heard that evaporating naphtha via freeze precip can leave the freezer stinking of naphtha? this might be an issue because he lives with other people that might not appreciate that.

could anyone shed any light on how stinky the stink is, and how long it would take to clear up and if there are any other alternative , effectively notable ways of evaporating the naphtha, even if they take considerably longer?

Use a mason jar with a tightly sealed lid and there will be no offending odors in the freezer.

You don't want to evaporate it in the freezer but before you put it in there.

Put a fan in front of a window blowing outside and put your naptha behind the fan so that the fan is pulling the fumes from your naptha, not blowing directly on the evap dish.