Isopropanol-extracted oil

[Reverend Budbreath]

Is anyone here intimately familiar with the iso routine? I am considering trying it... ideally, I would like it to supplant the butane routine.

What I know from having heard a couple of people who have done it say, is that the best way is to cold-rinse the herb with freezer-chilled isopropyl, and the herb is frozen too; and that this rinse is a quick one that exposes the herb to the alcohol for no longer than 2 minutes.

What I'm wondering mainly is the average yield per ounce of herb, when compared to the butane way. With butane I seem to get something on the order 1.5 g oil per ounce of herb. If iso can meet or exceed that, great, and I can also plan for how much iso to procure to try it.

[OneLegUp]

Oh Rev...

I had about 18z of shake, stem and a little airbud... I put 10 bottles of 99% (at Vons- $1.30 a bottle)in the freezer overnight but lacked the room for the green... next day packed ice around the base of the 5 gallon bucket..dumped in the green.. and then poured in the iso... I had been instructed to let it rest for 20 minutes then strain it off... which I did.... I ended up with 15+ ml of absolutely killer amber oil... when I simmered the iso off..

Other than the straining bit... it was really quite easy.. I used a crock pot on my deck and watched it....stirred it a little because a ring would form.... In all it took about 5 hours... but again that was 160 ounces of iso.. and slowed simmered....when it got down to about half a glass pie pan full of liquid I emptied it into the pie dish..filled the crock pot part way with water..rested the pie pan above the water with a tiny air gap to let off the steam...and cranked the water up.. this got rid of the rest of the iso...

just to make sure I let it sit for another day...uncovered in my closet...

Considering the results I achieved...I'd have no problem doing it again

[marigyp]

Well ole man you got step number one done, what happen to step number 2?
I suppose you threw away all your trim after the first pass!

Try doing everything you did in step one to your trim, but do not discard after straining. Let the trim soak in chilled iso for ten hours after the straining. You will get a darker colored hash, that will put your lights out and is about equal in volume to your first pass.

[Reverend Budbreath]

Thanks OLU, but wow it sounds like you got less than 1 gram per oz of herb. Not what I was hoping to hear, then again your description of the material makes it sound like it was not loaded with trichs... so maybe with more bud-heavy trim (mine may be close to 50% bud), the results would be better. Sounds like you were using about 8.8 oz of iso per oz of pot, so thanks for that ratio, that helps.

[Reverend Budbreath]

I'm wondering why my posts have a big gap between the end of the text and my sig file. Maybe it's because I used the bigger reply option ("Post Reply"). This is a test using "Quick Reply" to see if it doesn't happen.

Still, I think I like this BB s/w better than the old CW's. Seems to run smoother, and more things work!

Hmm... nope, still a big gap. WTF?

[c-ray]

some strains get 3 grams of oil per 10 grams of bud
the oilmastas hashmasta kut, fokker or bram should be here soon to advise

the big gap is a byproduct of the html particular to this style.. the more stuff you have under your name the bigger the gap, if you have no avatar,no location or no favorite strains then there would be little gap (see marigyp)...maybe we will make some different styles in the future with this in consideration

[OneLegUp]

rev- you are correct the product or basis for the oil was less than "sugar coated" goodies..but still made for damn tasty oil...

one of the things I did was go to home depot and bought were nylon paint strainer bags...that can fit in 5 gallon buckets... they worked great and are reuseable. Then I strained the balance through coffee filters and cheese cloth...

[Reverend Budbreath]

Thanks guys

C-Ray, of course, duh, that makes sense about the gap now that you mention it... the page space has to be long enough to accomodate those.

cheers

[Bram]

I wouldnt waste the time with iso. You get a better yield with butane, and it doesnt take as log to cook off a batch. If you have ALOT of trim to go through and not enough butane you can bust up the plant matter and extract a lower grade dry sift from it, and then run the dry sift thru with butane. After the oil is finished purging, whip it up into some even more purged budder.

[Reverend Budbreath]

Hi Bram, my thought was to save manual labor actually. I hate the loading and unloading of the stainless steel pipe, etc. I realize of course that isopropyl takes much longer than butane to evap off, but I really like the idea that with iso, the interface between the herb and the solvent is just a two-minute rinse. The rest of the work is just the removing of the solvent and a little filtering. My thing is that every time I do it, I need to get 10g of oil, so with butane I have to run four pipeloads of something like two oz each, the whole process takes at least a couple of hours. Big hassle.

[OneLegUp]

For me personally.. the most cumbersome aspect of the whole ISO process was the re-filtering of the wash... coffee filters tended to clog..so it required a little patience...

But other than that.. no big deal...

[Green Supreme]

Bram just curious.Did you ever run the material you sifted{green matter} with the butane after the sift.Curious if you'd get anything worth while.I know, after I screen for dry sift,I can give the material away to a friend who cooks with it.Suprisingly he makes quite powerful cannabis food.He's a Bajian so not the run of the mill pot food.Interested in other opinions.Peace GS

[Bram]

GS, it is worth it to run the really low grade kif that is mostly green, but still has visible large trichs.

[Green Supreme]

Not the powder,the green material left after the screening.

[Bram]

I know that you are asking about the plant matter.

[Green Supreme]

Ok thanks

[joe6pack]

can you eat iso?

i'm not a big fan of smoking iso and i was thinking a little heat plus some gelatin capsules i could have some strong pills

[Bram]

J6P, I would not eat iso. If you are wanting to make an edible oil I would use an ethanol based alcohol like vodka.

[Reverend Budbreath]

If I may butt in...

That last answer confuses, because if one used vodka (60% water), the huge water content would extract a lot of chlorophyl and other nasties, preventing a clean extraction. 99% iso avoids that of course by being 99% (approximately).

Also, I don't understand why you say you would not eat iso-made oil. If the iso is properly removed from the product at the end, it should not pose any toxicity since no significant amount would be there, and even if traces were left, traces of isopropyl would not hurt someone (as long as it is only trace amounts). Even fruit and other foods naturally have trace amounts of methanol, which is much more toxic than isopropyl.

[Bram]

But you can never remove ALL the iso. There is still a percentage that semi-permanently bonds with the cannabinoids on a molecular level. It would take years for ALL the iso to remove itself, if it even fully does debond. So it comes down to whether or not you want to eat oil with Ethanol alcohol in it (which is safe for human consumption altough still not good for us) or Isopropynol (which is deadly toxic to us and gradually accumalates over time in the liver.)

As far as the 60% water content of the vodka, I say that it is bullshit that it pulls out more chlorophyll. Iso pulls out LOTS of chlorophyll and waxes etc. when used at room temperature. Maybe at room temperature vodka might leach more unwanted shit, but if you use the frozen iso method with vodka instead of iso; I am willing to bet one would get a golden coloured vodka resulting in a edible honey grade oil.

[joe6pack]

well that's kinda what i thought. luckily i can buy everclear (close to 98% grain alcohol ).

funny though i can only find 70% iso

[Hashmasta-Kut]

Bram just curious.Did you ever run the material you sifted{green matter} with the butane after the sift.Curious if you'd get anything worth while.I know, after I screen for dry sift,I can give the material away to a friend who cooks with it.Suprisingly he makes quite powerful cannabis food.He's a Bajian so not the run of the mill pot food.Interested in other opinions.Peace GS

the oil tastes shitty. :)

if you make the pure crystal into oil, thats a good thing.. ~*()*~

the purer the kif used, the more golden the oil.

[Bram]

not to mention the more whollop I find the oil has when made from kif. I am planning on trying a little batch made from Full Melt bubble in a bit.

[Reverend Budbreath]

But you can never remove ALL the iso. There is still a percentage that semi-permanently bonds with the cannabinoids on a molecular level. It would take years for ALL the iso to remove itself, if it even fully does debond. So it comes down to whether or not you want to eat oil with Ethanol alcohol in it (which is safe for human consumption altough still not good for us) or Isopropynol (which is deadly toxic to us and gradually accumalates over time in the liver.)

Yes naturally I'd rather use ethanol, but where I live I'd be forced to order really expensive specialty stuff, not worth it.

I guess iso is more toxic than I had thought.

Back to the drawing board on the mega-extractor. I think I've got an idea for a way to butaneize a pound or two of trim at a time.

[Bram]

ya, take a stainless steel tube 3/4" wide and about 4 or 5 feet long, put a rubber bung in one end and a filter on the other and blast through about possibly a few dozen cans of butane.

[muggles]

I prefer grain alcohol in combination with a fan... just like joe6pack, I can get 190 proof everclear (95% purity) but can only purchase 92% Isopryll locally. I blew myself up once already so I am kinda leary of pumping butane into a relatively sealed pipe. :woohoo:

Stay safe and watch your six!
Muggles :pipe:

[Reverend Budbreath]

Bram, no I wrote a *pound* or two, not an ounce. The pipe you described is very similar to the one I use now and only holds a couple of ounces. What I'm suggesting is a setup that would work in a similar way, but scaled up a whole lot. What I envision is using a modified soda keg or similar stainless steel vessel that is basically tall and cylindrical in shape, with the volume to hold a couple of pounds (or three). A metal fabricator would be hired to modify it so that the top is removeable and one could load and unload the herb with ease. They would also affix a valve to the top that would accept the standard output nozzle of a small tank of butane. Additionally they would modify (cut) the bottom of the soda keg to have an output mouth that a filter would be put over and the butane would exit through. Then of course the rig would have to have a brace or stand to elevate it enough so that a receiving container could be placed under it. Finally this setup would have to be used out in an open field or something for safety reasons due to the large volume of butane. Open the valve and back the fuq up...!

[Green Supreme]

Yikes,good luck with that.Safety first.Even you grease makers,does this not worry you?Just hate the thought of the headlines to follow.Peace GS

[Bram]

Thats why I work in well ventilated areas, and if I know the situation requres it I wear an organic vapor mask to filter out the solvent from my breathing air. I HIGHLY stress that anyone attempting to make any type of solvent extraction to do it OUTSIDE, if you cant do it outside use some sort of room that is as SMALL as possible with some sort of door or ground level window that can be opened. You also want to have some fans going to control the path of the flow of air so that the solvent fumes are CONSTANTLY and IMMEDIATELY dispeling from the area.

[Reverend Budbreath]

Even that is not safe. I personally don't believe it can be considered "safe" to do butane work indoors no matter how it's done. It's too volatile, and walls and ceiling allow fumes to collect. This really applies to all solvent work, but the lower-boiling, the more dangerous, obviously.

Green Supreme, outdoors in the open, with a steady breeze, no source of ignition, it should be no more dangerous than a smaller volume of butane would be. That still wouldn't prevent me from treating it with great respect, however! Maybe scoring a fireman's protective suit to do the work in would be the "hot" ticket (har har).

[Hashmasta-Kut]

some house in van just got thrashed from some apparent weed extraction related explosion.

[stanky yank]

wernt you guys doing one with a scuba tank kut? someone was speaking of it months back. i love my oil as well and would never do it indoors be safe guys stanky