Rosin Technique....Easy DIY Solventless

[Bouldorado]

THC level is on par with good BHO. Activated THC is a 3-4x higher (10% vs ~3%) than what I typically see from the concentrates I buy. Not really surprising given the heat used during extraction.

I'm less familiar with terpene tests but after looking over the lab's test results, that rosin is pretty competitive for total terpene concentration. I was checking out strains with a similar THC content and they all have a lower total terpene concentration (3-5 percentage points less).

And it's hard to tell which terps the rosin has more of because the chart soilgrown posted is messed up. here's what it should actually look like (on his chart there are more bars than labels):

 

[421]

Wonder if I can do this with an upside down skillet and a cast iron grill press...

 

[Quetzalcoatl]

Wonder if I can do this with an upside down skillet and a cast iron grill press...

Probably, just need heat and pressure. I tried with an iron today with a different strain. I got a dab out of it! Pretty tasty though not quite like the flower. But damn did it melt away completely!

 

[421]

Wonder if I can do this with an upside down skillet and a cast iron grill press...

Probably, just need heat and pressure. I tried with an iron today with a different strain. I got a dab out of it! Pretty tasty though not quite like the flower. But damn did it melt away completely!

Tried it on a good amount of weed that I no longer felt like vaporizing, various strains. It definitely worked! Best results were setting oven to 360, putting cast iron griddle and grill press in oven for 10 minutes or so. Then took it out and performed procedure, pressing down really hard and turning grill press slightly for more pressure, about 5 seconds or so.

Got a surprising amount of oil from some strains this way. It looks like nice stuff too, not shatter but quite sappy and rich. I think I also realized how much crappy weed I had, judging by the stuff that yielded hardly any at all. Yeah for harvesting, there will be little brown small rain droplet things on the paper, trying to harvest where it looked sparkly barely got much oil at all and isn't worth the effort imo.

 

[Quetzalcoatl]

I'm getting okay returns with flower. The pressed stuff is still good, grind it up and it still gives clouds. After a few hits I dumped it out to break it up a little more and it felt oily, as if it were damn but sticky, still cloudy and doesn't taste like ABV. I'm not getting 15-20% returns with flower, but I think with bubble hash or regular hash it would work better. Though I could get solventless stuff delivered to my house from a dispensary... it's fun and not quite worth it to me either. On the upside the stuff that comes out tastes really good and does vape super cleanly. I even ended up with a little clear dome on my dabber!

 

[herbivore21]

THC level is on par with good BHO. Activated THC is a 3-4x higher (10% vs ~3%) than what I typically see from the concentrates I buy. Not really surprising given the heat used during extraction.

I'm less familiar with terpene tests but after looking over the lab's test results, that rosin is pretty competitive for total terpene concentration. I was checking out strains with a similar THC content and they all have a lower total terpene concentration (3-5 percentage points less).

And it's hard to tell which terps the rosin has more of because the chart soilgrown posted is messed up. here's what it should actually look like (on his chart there are more bars than labels):

You know what fascinates me here?

If you change the search to show waxes and oils which were tested for residual solvents - only a few absolute shatters and a honeycomb show up. Every single oil I see there which looks like it could be bathing in a little leftover solvent has not been tested for solvents.

 

[Bouldorado]

You know what fascinates me here?

If you change the search to show waxes and oils which were tested for residual solvents - only a few absolute shatters and a honeycomb show up. Every single oil I see there which looks like it could be bathing in a little leftover solvent has not been tested for solvents.

Did you perhaps have other search refinements added? When I select "Wax", "Oil", and "Concentrate", and the Potency test, I see 32 pages of 20-per-page results. When Residual Solvent Test is selected, about 2/3 of the results drop out. So I definitely agree with you that most concentrates aren't tested for solvents. I think the reason for that is most of them use a Class 3 Solvent like butane, ETOH, or ISO. Look at this GS OG. Nearly 4200ppm of ETOH and it still passed.

According to the FDA the allowable daily exposure limit for Class 3 is 5000 ppm. Some states like Washington have specified limits (50ppm IIRC) for concentrates, but if there is no mandate to test each batch, then they are essentially unregulated.

 

[darkrom]

Something about this rosin technique appears to be a waste of good flowers. I think vaped flowers give you more than pressed flowers. With vaping the flowers you can extract ALL the goodness with a good vaporizer. It seems that pressing flowers for resin gives you the exact same thing minus the flower plus a good amount of resin left behind in the pressed bud. Why do this to premium flowers — it makes no sense?

Sure you could vape an 8th of flower and get a dab or 2. Or you could just take a dab or 2. Depends how you want to look at it I guess.

 

[2clicker]

What I am saying is this rosin method is wasteful. You do not get a 100% return in rosin from flowers. You have much waste in the process of making this stuff or any concentrate for that matter. This one seems especially vapid.

seems to me that when you do this you get the dab/s that the rosin tek provide and then can still vape the rest of the flower to get the rest of the actives.

where is the waist? yeah the flowers dont look pretty anymore, but if you are getting all the actives then where is the loss...?

 

[darkrom]

So, you take a flower and squeeze out some resin for a dab then take your flattened flower and vape it. When you could have just vaped the flower and had complete extraction all in one step.

How much flower can you vape at once?

The same argument can be made to become "why have any extract when you can vape flower" but there are quite a few reasons people prefer extracts to flowers.

Maybe you want to take some solventless oil to an event and do a few dabs, not sit down and spend an hour vaping an 8th of flower.

 

[herbivore21]

Did you perhaps have other search refinements added? When I select "Wax", "Oil", and "Concentrate", and the Potency test, I see 32 pages of 20-per-page results. When Residual Solvent Test is selected, about 2/3 of the results drop out. So I definitely agree with you that most concentrates aren't tested for solvents. I think the reason for that is most of them use a Class 3 Solvent like butane, ETOH, or ISO. Look at this GS OG. Nearly 4200ppm of ETOH and it still passed.

According to the FDA the allowable daily exposure limit for Class 3 is 5000 ppm. Some states like Washington have specified limits (50ppm IIRC) for concentrates, but if there is no mandate to test each batch, then they are essentially unregulated.

I get ya brother, I think you are right insofar as people think that class 3's are safe.

But this is what shits me about US dispensaries and regulation. Those classes of solvent from the US Pharmacopoeia were not conceived with heating and inhalation in mind. All class 3 solvents release hydrocarbons (and in some cases other asphixiants) when dabbed/vaped. Inhaling hydrocarbons is not safe. They displace oxygen in your airways and in enough concentration will choke you from the inside out.

Whoa dude, you're right, that GS OG looks woeful! You can visibly see the oil swimming in solvent, decarb would not result in anything like that!. Wouldn't touch it. Guys, if you ever find good, clear looking oil in that consistency - run the other way!

Also I only had oil and wax checked, not concentrates - might have another look lol. It is so fascinating (and at times shocking) to see what passes for merchandisable oil in the US lol

 

[darkrom]

Inhaling hydrocarbons is not safe. They displace oxygen in your airways and in enough concentration will choke you from the inside out.

So wouldn't you need to do like 10+g gram dabs to literally choke from displacing too much oxygen? What happens to the hydrocarbons after inhalation, do they get exhaled shortly after?

 

[herbivore21]

So wouldn't you need to do like 10+g gram dabs to literally choke from displacing too much oxygen? What happens to the hydrocarbons after inhalation, do they get exhaled shortly after?

It varies based on the solvent left in a given sample of oil. We're not talking about dying being the problem! It's about the acute, as well as cumulative problems of lack of oxygen throughout the body due to constant dabbing of material with leftover solvents which is the problem

Acute side effects from dabbing material with residual ethanol include headaches (very common).

On the anecdotal side of things, residual butane gives me a spike of anxiety reliably and a rushy, uncomfortable sensation - regardless of strain or other factors (like partial decarb etc - yes, you can partially decarb a sample of concentrate without having fully purged the solvent out ).

I have spent my most recent times (during which you guys will note I have not had so much new oil to share pics of lately) experimenting with oils to understand what methods of production are most desirable and what one should seek to avoid. I am thinking of starting a thread in the near future that'll be the concentrates answer to 'Glass 101' in the glass section. Here this information will (ideally) eventually be detailed alongside other relevant considerations when deciding whether you should dab that oil you are presented with.

IMHO, what the dabbing community needs more than anything right now is more harm minimization info and especially with regard to choosing what material they actually dab!

 

[2clicker]

So, you take a flower and squeeze out some resin for a dab then take your flattened flower and vape it. When you could have just vaped the flower and had complete extraction all in one step.

oh i know what you are saying, but sometimes i wanna dab and sometimes i wanna vape flowers. options are a good thing IMO.

since getting into concentrates i much prefer them to flowers. especially for convenience and ease of use. they are more stealth also.

and i agree that the sound of this tek is sort of silly, but apparently it can produce decent results. worth noting i think.

Acute side effects from dabbing material with residual ethanol include headaches (very common).

my QWET has never given me a headache so i guess im doing ok!

 

[herbivore21]

my QWET has never given me a headache so i guess im doing ok!

Every pic of your work that I have seen would support this assumption my friend

 

[Deadshort480]

Just pressed out a little bud (.3?) of some older GSC I had lying around and the oil pooled around the bud nicely. I got a decent sized dab from collecting it.

I'm about to try another with a different strain and will take some pictures.

Bubba Kush

 

[darkrom]

Got to see it work today. Friend showed me in person. Had the iron on half heat, held hard for a little longer than I usually did and bam. We each got a dab from a .3-.4g nug that we only pressed 2 times while in a rush. It was basically yellow colored super clear and clean oil. LOVING IT lol.

 

[Grim Chiclets]

Might have to try this with some Diesel we've got lately, it's definitely a cut above the Cataract Kush around lately..
I just love the fact that it's no purge required; I refilter/rewash all oils and waxes with iso to make sure it's clean- so glad I won't have to with the rosin technique

 

[darkrom]

Got that from around .3g bud. I was able to dab half of that and feel it pretty strong, and it was one of the MOST flavorful dabs of my life. Its a little thicker than it looks in the pic. The bud used was "Medibud" from a dispensary which has great smell and flavor as it is.

The keys for me FINALLY were to turn the dial down on the iron. I turned it down to 12 out of 30 for the heat, and pressed using my full body weight on the iron. I also had to hold longer than I had been. That was 3 total presses. Scraped the dabs off the parchment easily with my dabber. Just a very light pressure + a scraping motion. Really light and it came right off the paper and stuck to the rest of the oil. The more oil on the dabber, the more easily the oil came off.

I think those of you getting bland taste are going too hot. In the video posted you can see a LOT of vapor being made when they press the bud. I didn't see any while making this at all. If there was some, it was very minimal and hard to see while pressing. VERY quiet sizzle not the loud one I got at higher temps (without any yield sadly).


So this has created one of my favorite dabs of all time so far, and it is solventfree. It IS labor intensive, but that is more than made up by not having to purge. Purging my QWET or dual solvent runs is a lot of work since I don't have a vac, and I definitely lose terps in exchange for eliminating all of my solvent. In this method I actually think I have BETTER terp retention than with solids. Now I'm not a dealer or a grower or a producer, so maybe that changes things, but I can definitely see myself continuing to do this, and trying to scale up. Not only is it quick and easy to make delicious oil out of any strain with nearly no starting material to commit to, but then you can try the oil and see if you like it better as oil or bud etc. I'm super excited about this. I committed all of 0.3g bud and 10 minutes of my time to get a couple of delicious dabs for the night. I haven't made oil lately because its cold, and purging sucks without a vac. This has me very excited to keep making some delicious oil. I can try a little of each strain

 

[flotntoke]

Really glad to see some good results coming out of this! For some of us the "labor intensive" part isn't too much of an issue... it's the availability of anything close to a concentrate (other than bubble hash) unless you make it yourself. And, I wish I had access and $ to blow on top shelf from the street that I could make worthwhile BHO with, but that ain't happening. Nice to know I could possibly pull a few dabs out once a week or so without all the regular jumping through hoops and cost.

Thanks to @darkrom and everyone else for working out the kinks! Pun intended. Will be shopping for a hair iron soon.

 

[darkrom]

Really glad to see some good results coming out of this! For some of us the "labor intensive" part isn't too much of an issue... it's the availability of anything close to a concentrate (other than bubble hash) unless you make it yourself. And, I wish I had access and $ to blow on top shelf from the street that I could make worthwhile BHO with, but that ain't happening. Nice to know I could possibly pull a few dabs out once a week or so without all the regular jumping through hoops and cost.

Thanks to @darkrom and everyone else for working out the kinks! Pun intended. Will be shopping for a hair iron soon.

I was just passing it on and wasting buds trying it out. @Soilgrown was the one to bring attention to it. His method. I don't have instagram so I had to learn 2nd hand. I wasted a lot of good buds but it was worth it finally. That medibud flavor has my mouth watering still. I'm gunna be pressing more buds than I'd care to admit soon. I'm already considering different ways to scale this up in the future.

 

[hafalump]

would not know a dab from a crab, but i hear there is lots of butane soup out there,
organic high end colas, fuck the tane soup.

 

[421]

It seems better to err on the low side of temperature... I wonder what the lowest effective temperature would be for this method. All I've seen is 350 but maybe 300 would work too.

 

[Roth]

would not know a dab from a crab, but i hear there is lots of butane soup out there,
organic high end colas, fuck the tane soup.

I don't think you actually read the thread? The whole point of this tech is that it is SOLVENTLESS, ie 0 butane or any other solvent.

 

[hafalump]

yeah read thread, lots of crap out there, bubbles, sparks, dude good organic soil grown,
way better then chem extract, imho,