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Old 02-15-2017, 05:30 PM #1
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Hash oil techniques and solvents for non BHO hash oil?

OK, let me preface this by saying, no I am not a chemist, and yes, just using solvents bought cheaply can make for some level of risk and toxicity, but done properly, that risk should be very minimal I don't wanna get into the inevitable "OMG never touch this random toxic thing!" kind of posts. If you don't feel comfortable with product made the way its being discussed in the thread, fine, but we don't need to hear that over and over I'm just interested in cheap, easy and relatively safe ways to make concentrates, from our actual experiences.

Now I'm no grower or expert either, but I know what I've tried and how it worked. I also know some of the hazards and pitfalls and have put myself at considerable risk over the years I've cooked harder drugs in the past, have over 10 years clean now, but I just wanna stress, that yes, safety matters to me, but cost effectiveness, ease and product results are what matter most to me For me, this can be recreational but is primarily a medicine, and I have to make it count, because I can't afford to just buy all I need as some can.

I primarily started experimenting because I got a friend with good source of cheap trim and bottom leaf from a volume grower I live in a trailer, so bubble hash is very impractical, as i have no freezer, just a slot that keeps things frozen sort of and ices over. So we pick the stuff for the buds and smoke em I don't see the point in wasting buds making oils I hear the "quality in is quality out" mantra and its somewhat valid, but i like the buds as they are and even bottom leaf alone (from quality strain plants) has enough cannibanoids to make this worthwhile. Plus, for me, the more bottom leaf the better, as it adds all that wonderful CBD to the product, and while yield is lower with leaf, Id argue that potency isn't as big a deal as folks say IMO, you get just as high off a similar amount, its just buds are tastier, higher yield and sure maybe somewhat more potent, but not so it matters to me.

Anyway, that said, we do blow BHO when we can afford to and when we can get together to do it, we do it outside safely as we can, but I can tell you other than quality of product, I have nothing I like about the process.

So I've done QWISO many times over the years and never come up with a product you could put in a dabber that didn't look black and taste nasty I hear cold is key, tried it, still was never happy with vaping the end product, stony, but bad nasty taste and dark color Would consider trying activated charcoal, but yeah, just never found this to make anything better than smoking quality Throw it on a bud, smoke it, then it taste fine.

So, recently I tried three batches with three paint store solvents, each 1 US quart and all around $10usd each, Denatured Alcohol (basically 90% ethyl, 10% methyl to make it relatively anhydrous), VM&P Naptha (Zippo Fuel essentially or paint and varnish thinner), and Acetone. All branded Sunnyside, available with ease locally, and all evap cleanly Yes, again, I know its industrial grade, but ease and cost count to some of us, and AFAIK, its safe, no residual solvent smells, tastes. Id bet some cash a commercial lab would test my stuff and find it acceptable as far as end product. I think the real hazard here is heated purging and fume inhalation. Heated purging is a necessity for me, as I live in trailer with cats Air evapping would not only expose my buddies to fumes, but they'd be sure to spill sticky product.

Simple method, keep weed and jar and solvent (except Naptha) in top slot of fridge at freezing temp, cold as I can couple hours, Naptha you warm in a water bath for the extraction, comes in a nice metal can, easily fit in my rice cooker I use for purging. I don't eat it so no de-carbing, and I think the heated purge does some of it anyway, but also no grinding, just dry crumbled de-stemmed stuff is ideal Stems contribute little and just act like sponges retaining solvent and reducing yields. Soaks should be short as possible with gentle agitations and and washes I do not separate the washes, but rather evap them together. Then I simply strain it off with a screen and coffee filter (screen over filter to keep plant material out of coffee filter), this allows you to collect kief from filter later and makes it filter quicker.

I think purging is where the health risk is The fumes can be awful. Denatured alcohol is better, though not at all pleasant, its only 10% toxic by volume anyway. Naptha I almost like the smell of, but would you willingly huff gas? Sure boiling naptha is awful for ya, not to mention flammable as hell, and acetone is the worst! Eventually I wanna build a closed system so as to recover solvents and for safety. In any case, for now I boil in a rice cooker on high outdoors I set a flat screen on the pan, with a small desk fan on top for weight and to blow fumes and walk away till about 2/3 is purged, usually about 20 min, I assume around 100c Then I take it on my lap with the fan to agitate and of course hot pads on, just slowly agitating as it boils off When it gets very thick, you can let it go to "warm" to finish and its good to stir and pop bubbles the help the purge You can also use a few drops of distilled water, because it boils at higher temp than the solvents, and helps finish the purge.

So the results I got were, that DN Alcohol, had highest yield, but lowest taste and color quality, the potency was very close, but way too much chlorophyll and sugars got through, not at all vapable.

Naptha made a nice product, with decent yield, deep brown in color Not "good taste" but entirely vapable and some who tried it liked it, but not me. :(

Acetone had the lowest yield, but I also had less than a bottle and less weed, but that cant account for the small yield entirely. I used the same weed and like 2/3 as much weed and solvent, and came out with slightly less than half as much. May try longer soak in fridge, but am open to suggestions? The quality tho! Very potent and tasty! A delight to vape, damn near BHO quality, just bit darker brown and nice and translucent.

Since writing the above I have read more about filtration maybe being the problem with alcohol and taste? It was suggested to use a 0 micron filter or less, but IDK, where to get cheaply? Experience anyone? Definitely willing to experiment more with it, as I get a usable product, just wanna refine for taste.

So anyway, my goal was a nice oil, vapes and tastes like BHO without the vessel, cost and risk of BHO Acetone is my new solvent of choice, because I got exactly that, but the whole purpose of this thread was to share experience, and develop methods to improve on, so have at please, I look forward to learning!
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Old 02-15-2017, 05:58 PM #2
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That was a very interesting post. I also wish to make my own CO but these solvents bother me a little. I have yet to attempt this on my own, but after vast research I have decided on using Everclear. I found a good video on You Tube to make a small batch of RSO, and it seems reasonably safe. I of course can attest to taste, but I will likely use it in a cookie recipe I use now with trim and cannabutter. I hope this helps someone.

Link to video
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Old 02-15-2017, 06:00 PM #3
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Oops, correction. I cannot attest to the taste. Sorry!
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Old 02-15-2017, 10:39 PM #4
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Could you at least pick-up/build a still capable of cleaning said solvents?

I'm afraid you'll be quite surprised at what will show up on a toxicity report. Anyone out there done this with sunnyside and had the extract tested? There's a reason food and pharmaceutical grade solvents are much more expensive.
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Old 02-16-2017, 01:49 AM #5
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I just got another bottle of acetone Was gonna give toluene a try, and still plan to, but none at close store, have to drive a little. Wanna try and up the yield Gonna do two full washes, and a short soak on each of 20 min, no more than 30, but soaking in the freezer, no real agitation and see what I get. Beauty of it, is I get always at least a smokable product if not vapable.
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Old 02-16-2017, 03:41 AM #6
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Such cans of denatured alcohol are almost always SD-1 or SD-3A alcohol with an equal volume of methanol. In other words, expect at least 50% methyl alcohol from hardware stores.

Naphtha in the can is usually partially high boilers that will not evaporate easily. The lower boiling portion is acceptable, if it's pure alkanes.

Toluene is not the best residual solvent because larger amounts may cause drain bamage. Acetone has been a hot button topic here, at times.
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Old 02-16-2017, 03:54 AM #7
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Mark butane is not all that expensive if you order a mastercase online (or even just 12 packs sometimes). As Joe points out, you are messing with residuals that are very hard to boil off. Butane is much easier to purge and still end up with a nice product to vape. Also, you cannot pull out more than the trichomes allow for. It sounds like what you made so far is already chock full of chlorphyll and waxes. Maybe give chilled butanr another chance? Frankly, you have no idea what you are inhaling right now.
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Old 02-16-2017, 04:27 AM #8
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Butane is 3x the cost, requires and assistant and is more dangerous should a mistake be made. Bad batch of QWISO or similar = fixable, bad BHO = loss.

I also already told everyone we do BHO when we can, this is additional. None of this is commercial, there are no sales, just personal use, and donation for other medical patients, and when I say donation I mean not for money, just for free.

When I say butane is less safe, I say it with some experience I have had a pyrex full of boiling naptha break on a hot burner and flash, now it was back in the day and it was pseudo in the beaker, but despite the scare, fire was easily manageable and the wife was never the wiser (in the kitchen mind you).

So my point is, if you purge correctly, maybe add a few drops of distilled toward the end of the purge, because if it boils off, the solvents go at lower temps.

I'd bet a fat stack of cash, you'd be exposed to far more naptha using a Zippo for a week than you would vaping 10G of my oil, more acetone using nail polish remover in one sitting than in 10G of my oil. As I said, I know folks been doing this for years to no known ill effect.

So yeah, BHO when we can, but there's times, other oil makes sense, my goal is to do it well as can be done. Eventually i will rig a still for recovery, but not there just yet.
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Old 02-16-2017, 04:31 AM #9
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Quote:
Originally Posted by G.O. Joe View Post
Such cans of denatured alcohol are almost always SD-1 or SD-3A alcohol with an equal volume of methanol. In other words, expect at least 50% methyl alcohol from hardware stores.

Naphtha in the can is usually partially high boilers that will not evaporate easily. The lower boiling portion is acceptable, if it's pure alkanes.

Toluene is not the best residual solvent because larger amounts may cause drain bamage. Acetone has been a hot button topic here, at times.
Thus using VM&P Naptha, which is purposefully lighter so as to make a fast drying paint thinner.

Again, purge, purge, purge! Do that well and at worst, the amunt f residuals should be minuscule.

Am I gonna claim total safety? Not at all, but I would say, many people in boat building locally inhale more of all of this stuff than I ever will, even with the masks.
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Old 02-16-2017, 06:07 PM #10
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Eventually i will rig a still for recovery, but not there just yet.
Work toward a vacuum still and use ethanol. Lovely extracts.
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