I just have a few questions about some terms used in many extraction teks. First of all, what is a "pull" exactly? From what I'm getting, polar and non-polar solvents separate and then you "pull" by siphoning one of the layers into a different container... is that right? What do you do when you have to do multiple pulls?

Also, one extraction tek I'm interested in (PanaoraMIX's HBWR Extract) has a step that just says "Take your solvent off." Does this mean I need to evaporate the solvent or what?

I've been interested in this stuff for a while but I've only recently been in a position where I can actually do it. Very eager to hear your answers.

morning wolfstine,


yes, your right, a pull is the addition and removal of solvent.

to do multiple pulls you just add and remove several lots of solvent, one after another.


"take off solvent" is the same as a "pull", it is the addition and removal of solvent in order to remove alks from whatever mix you are working with be it MHRB for DMT or HBWR for LSA

hope that helps

So, just to be clear: you add solvent, separate the layers, discard the unwanted layer, and then add more solvent to the good layer and do it all again, right?

Also, for the aforementioned HBWR tek, the steps are as follows:

Could someone explain this to me and pretend I'm an idiot? The language is still a bit confusing to me.


Thanks for your help.

I guess there are 2 kinds of pulls,

ones you want to keep, such as pulling DMT from a based MHRB mix. This type of pull will contain the goodies you are after so you want to keep it.

and ones you would want to dispose off such as defats from ACRB, these type of pulls will contain no goodies but will contain unwanted things such as fats, you can get rid of these.

A "pull" from MHRB would consist of adding 50ml of naphtha to the based MHRB, mixing around for a few minutes, then removing the solvent with a syringe/baster and putting in another container ready for freeze precip. This process would be one "pull", you would keep "pulling" the mix until no more goodies could be pulled out of it.



OK, so in steps 1-4 of that tek you are doing the type of pull that is to be discarded because they contain unwanted substances that you don't want in your final product.

steps 5-7 are the type of pulls you want to keep as they contain the goodies. In the case of this tek you are pulling the goodies into the solvent and retrieving them by evaping the solvent to leave the goodies behind.

so in steps 5-7 you add your acetone/IPA/everclear or vodka to your seeds, mix with your ground seeds for 30 mins, then you pull the solvent off the seeds and allow to evap in a baking tray. You can keep pulling until your evaps result is nothing.

hows that?

Thanks for your help, 3rdI. I think I'm getting it now. I'll try out the extraction as soon as my HBWR seeds arrive and we'll see how it goes.