How long to vac purge

vacpurge

vacpurge

New Member
I dont think warm butane gives a higher yield specifically, unless youre under rinsing to begin with... then maybe it might pull more out than cold stuff. but as long as youre rinsing everything.. your yield will be the same, just less hassle with cold I find... youre not sitting there in a butane cloud while blasting. I find it hurts my throat while blasting with warm butane... plus if it ever did find a spark.. ouch. once im done, I set onto warm water, and run inside the house while its at its most dangerous part justttt in case. some like to watch it evap and are mesmerised by the bubbles... not me. she can blow up all she wants when its way outside, and im inside haha.

I do shake the hell out of my extractor though.. which creates free pressure and forces another 6 or 7 drops out when the can is empty.. ie free hoots just from holding your thumb over the hole and shaking. I also do that between cans to mix everything up and make sure its all getting rinsed evenly... I dont think you glass tube guys can do that.
 
Sirdabsalot462

Sirdabsalot462

Well-Known Member
You are right on all counts there.

Yes, normal glass column extractions, we don't get much time to” play” with the extraction.
However I still am a firm believer that the more pressure the greater the yield..
I believe this because I've experimented with different sized IDs , Inner-Diameters the smaller the ID, the better yield.

Hey. I've been meaning to ask you this forever...

When you post your oil pics, am I seeing your oil directly on metal?
Maybe I'm seeing something else...?
 
vacpurge

vacpurge

New Member
yup, I blast right into a SS dish, then scrape and it works perfectly. I can get every last tiny spec in about 3 blades.. 2 minutes or so ;) heat the back of the blade a little bit, drip it onto parchment, and weigh, then into the vacuum chamber ;)










and if youre looking for a higher pressure in your tube... you could pack a tiny bit tighter AND put more coffee filters on the end I find helps mine build pressure... almost to the point where its annoying to change cans... but once again, not sure if the glass extractor guys would want to do that.

also, when switching cans. I take my time.. let the butane from the first can really soak and wash the weed. then when the second can hits it... its pushing out super potent stuff for the first few seconds.. then back to normal. I dont know if it helps or not, but its just a tradition.

same on the first can, I sometimes stop once it starts to drip out the end and I know all the weed is soaked in butane... instead of pushing that butane out real quick, I let it sit for a few minutes, then continue to run my can through it after letting it all soak for a few minutes. not sure if that helps either but I like to think it does haha.
 
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Drewbush37

New Member
Fadedawg said:
You can do a full vacuum purge under -29.5" Hg vacuum and 115F in about 30 to 45 minutes, if you want shatter, and as long as it takes to turn that to wax, typically 8 to 24 hours.
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json/mtl said:
Just wanted some input on how long i should vac purge
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Bro you should purge at 95 degrees and for a minimum of 36 to 48 hours
I purge for 3 days. You won't lose Terps because under vac the boiling point in most lower around 112
 
Fadedawg

Fadedawg

Well-Known Member
Drewbush37 said:
Bro you should purge at 95 degrees and for a minimum of 36 to 48 hours
I purge for 3 days. You won't lose Terps because under vac the boiling point in most lower around 112
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May I suggest you find more current posts than 2013 and do some testing brother?

Shortly after 2013, we bought our own GC and starting with cotton candy, at 10 microns/-29.5" Hg, we achieved less than 10% of FDA maximum residual solvent standards in 4 hours. WolfWurx also sold equipment for commercial application and they found the same thing.

In addition, you absolutely lose terpenes below their boiling points, because of their high vapor pressures.
 
PentultimateMasterblaster

PentultimateMasterblaster

Active Member
Ok BHO lessons 101: Dry, Powder, and Stuff. Prepare stuffed tube and butane by cooling as much as possible. Butane is a heavy gas ergo does a lot of work lower temp will decrease that work and free the trichomes creating desired balance for better results. Dry ice recommended and at $4/lb well worth the price. Always blow into a metal vessel and only water as a heat source for degassing until the large bubbles subside before switching to a more aggressive approach. I usually go with boiling water for a couple of hours (100+ g batch of oil) and the take it up to 145 C (smoking hot) or so for several minutes back down to 125 C or so, repeat until all of the froth and small bubbles are gone and the oil lies "flat" after agitation. Then apply any winterizing, filtering or vacuum treatment. I do my purge this way because I can be sure that I am not poisoning myself or anyone else
 
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Drewbush37

New Member
Fadedawg said:
May I suggest you find more current posts than 2013 and do some testing brother?

Shortly after 2013, we bought our own GC and starting with cotton candy, at 10 microns/-29.5" Hg, we achieved less than 10% of FDA maximum residual solvent standards in 4 hours. WolfWurx also sold equipment for commercial application and they found the same thing.

In addition, you absolutely lose terpenes below their boiling points, because of their high vapor pressures.
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Drewbush37

New Member
A brother I just got on here for something to do. I'm sure that with your own gas chromatograph you can do tests like that and the more power to you. However I go by what we've all gone by for thousands of years which is smell taste and looks in effect. We've done this with cannabis breeding for thousands of years and we're starting to evolve when it comes to concentrates and I don't deny that but with that being said you can never get me to smoke anything that's only Purge for 4 hours I don't care what the test says. If I can visibly see bubbles they're obviously full of gas so I know if you go up with a higher temperature you can get rid of those bottles but bubbles but again you're losing Terps and cannabinoids by raising those Temps 95 degrees 48 hour Purge make sure you flip it you know halfway through and you're in good shape A1 five star shatter
 
Fadedawg

Fadedawg

Well-Known Member
Drewbush37 said:
A brother I just got on here for something to do. I'm sure that with your own gas chromatograph you can do tests like that and the more power to you. However I go by what we've all gone by for thousands of years which is smell taste and looks in effect. We've done this with cannabis breeding for thousands of years and we're starting to evolve when it comes to concentrates and I don't deny that but with that being said you can never get me to smoke anything that's only Purge for 4 hours I don't care what the test says. If I can visibly see bubbles they're obviously full of gas so I know if you go up with a higher temperature you can get rid of those bottles but bubbles but again you're losing Terps and cannabinoids by raising those Temps 95 degrees 48 hour Purge make sure you flip it you know halfway through and you're in good shape A1 five star shatter
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We haven't been extracting with LPG for thousands of years.

Decarboxylation produces bubbles, as do terpenes leaving.

The legislators don't share your enthusiasm for measuring residual solvent via your senses and have set standards as measured by GC or HPLC. That is the standard that industry in legalized states adhere to.
 
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Drewbush37

New Member
Your dodging the question. Bubbles are normally more indicative of solvents and you know this you're just trying to argue your point I do agree that volatile terpenes can produce small bubbles however I'm not decarboxylating so I don't see how that's irrelevant. And the best computer in the world is the human brain and you can't deny what thousands of years of reading has done we have the best cannabis we have ever had maybe not full spectrum but we can fix that with the testing that you are advocating so strongly. I'm all for the test game for your old knowledge however I think people get diluted with the numbers when they buy THC products they look at THC percentages and I don't think that that's really the way to look at cannabis strictly by the numbers you have to rely on your vision your smell your touch your taste in the effects and no gas chromatograph liquid chromatograph machine can tell me that. agreed?
 

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Fadedawg

Fadedawg

Well-Known Member
Drewbush37 said:
Your dodging the question. Bubbles are normally more indicative of solvents and you know this you're just trying to argue your point I do agree that volatile terpenes can produce small bubbles however I'm not decarboxylating so I don't see how that's irrelevant. And the best computer in the world is the human brain and you can't deny what thousands of years of reading has done we have the best cannabis we have ever had maybe not full spectrum but we can fix that with the testing that you are advocating so strongly. I'm all for the test game for your old knowledge however I think people get diluted with the numbers when they buy THC products they look at THC percentages and I don't think that that's really the way to look at cannabis strictly by the numbers you have to rely on your vision your smell your touch your taste in the effects and no gas chromatograph liquid chromatograph machine can tell me that. agreed?
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One of us seems intent on arguing their point for sure, but I don't understand how I am dodging anything.

The issue is residual solvent and I don't agree our senses are more accurate than a GC or HPLC. In fact I believe they most emphatically are not, as supported by available research.

I do agree that you can taste both LPG and alcohol at lower concentrations than the FDA standard for Class III solvents, but the standards for cannabis concentrates is typically held to 10% or less of the FDA standard, where not everyone's senses are capable of detecting them.

What was revealed by legislation requiring that cannabis concentrates meet residual solvent standards, was that many concentrates then on the market did not, despite the fact they were blessed by their creators.
 
Fadedawg

Fadedawg

Well-Known Member
Adding to my point, one of the prime reasons we purchased a GC, was that we were supplying other people with cannabis medications, so it wasn't just us that might suffer from our mistakes.
 
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