Vacuum Purging Times? 10 min? 20 min? 1 hour??

Hi guys-

I bought a 3CFM Single Stage pump with a Vacuum chamber and all but can't find any info on how to's, timing or exact procedures. After reading and googling for an hour to find some instructions I wasn't able to get any DETAILED instructions that sounded like they work. Some people say 1 hour? some say 10 minutes? Not sure exactly what that would mean either, does it mean I need to have the vacuum on the whole time for 1 hour? I feel like something might explode this way. I am obviously a newbie at this and would love to hear from people who've got some sure detailed methods that work. Do you release the valve immediately after the hour? or during the whole hour does the valve need to be released? or do you run the vacuum til it hits 29psi and then turn off the vacuum but dont release the air? so confused.

Here's a link to a great informative thread

https://www.rollitup.org/concentrates-extracts/624465-bho-vacuum-oil-wax-tutorial.html?highlight=Guizas

I cannot offer much advice as I purge my BHO with a hand vac which is essentially the same process you are attempting. First off I don't observe time or temperature and do it this way I so because I have learned through doing. Watch all the YouTube you want but there's no substitute for first hand exp. Keep your temps below 130 and keep vac-ing the oil while it's thin & warm and eventually you will get purged oil..it's that simple. What I do is blast into a Pyrex in a hot water bath...after scraping it goes back into a hot water bath until it melts back into a puddle then I put in my chamber & pump vac up to a muffin..then leave it on a low heat pad for 30mins or so....then release pressure & continue repeating this process a few times until oil stops reacting under pressure..."mellow oil" then dab test & it's done. It only takes me about 2-3 hrs to purge a g of BHO. Should'nt worry about blowing yourself up if you blasted outside....majority of the tane is gone before it goes in your vac..good luck

THANK YOU SO MUCH FOR YOUR INPUT. THIS HAS CLEARED ALOT OF POTENTIAL MISHAPS THAT I MAY HAVE ENCOUNTERED OTHERWISE.

couple of questions tho? just want to make sure I do it right the first time.

#1

midnitetoak said:

I put in my chamber & pump vac up to a muffin..then leave it on a low heat pad for 30mins

Click to expand...

Would I turn my vac motor off at this point? and should I release the pressure valve before leaving on low heat for 30 min? or leave it for 30 min and then release the pressure? Will it hold that muffin shape while left on low heat for 30 min?

& #2

midnitetoak said:

It only takes me about 2-3 hrs to purge a g of BHO

Click to expand...

I used hexane, does this take just as long? Also, I ran an oz of some frosty grade a nugs and will probably get like 4-5 grams or so if I'm lucky. Does this mean it will take me 15 hrs to purge?

Thanks for your help & anyone else who may have some wise advice about this.

Hexane takes longer to purge...higher bp and low sensory threshold

Imo purge time should be equal no matter how much material your running...I mean to an extent..what I mean is you should be purging thin film, if trying to run more than you have surface area for...you need a bigger chamber or whatever.. ive never spent more than a few hours purging or altering consistency

No clue about hexane... Or how to operate your power vac. When you release the pressure first time your oil will likely deflate & flatten out...while it's still warm & pliable I would then try to pull vac as you can go without exploding your muffin. If you wait too long & it gets cold & hard just drop it back into a hot water bath to melt it a bit & keep vac ing until the oil stops bubbling up under pressure.... No idea how long that will take to purge either... I know after vac-ing up a muffin say 3-4 times it starts to "mellow" & that's when I leave my oil under vac & warm for awhile. I set my heat pad on low which I know gets up to about 110 deg+ & then I just leave it for a half hour or so. When I come back it's usually done... Just keep checking it periodically with that quantity I'd say check every hour or so

Awesomeness!! hopefully this'll be my last question?

here goes...

Final Question (Maybe):

midnitetoak said:

that's when I leave my oil under vac & warm for awhile. I set my heat pad on low which I know gets up to about 110 deg+ & then I just leave it for a half hour or so

Click to expand...

Do you continuously vacuum during this half hour process? or just build up the pressure in the container and have the pressure held there without releasing any air for half an hour? Or do you get it to muffin, release the valve and then leave it heated at 110F without any vacuuming during the process?

Thanks again for everything. Really appreciate your knowledgeable experience as my stupid ass is bound to make mistakes anyway.

Get it to muffin under pressure...Then walk away. Keep it warm. 30 mins or longer...release pressure & keep doing this until it stops bubbling up when you raise up the pressure again.. When it stops reacting to the pressure it's done...at that point I like to melt it back into a puddle & freeze it if it is like shatter, if it becomes like wax I leave it as it is....if you fuck it up you will learn what not to do for next time ...mistakes are an inevitable part of the process. I think a constant low heat is more important than vac pressure... The vac kind of helps speed it up but it's the (LOW) heat that actually purges your oil

Hey don't forget to throw guizas love & likes for that awesome tutorial I posted for ya. Learned everything I know from that thread

After you scrape from your hot water bath onto parchment paper, throw that into the chamber. I start out with no heat and leave it on for 8-12 hours while I go frolic the streets of los angeles. After I come back home I'll turn the vac pump off and open the chamber and take the parchment paper out. I'll then turn my griddle on low heat and throw the parchment paper back in the chamber to achieve consistency at this point and further purge any nonsense tane out. I found that 115 gives me a nice sap that has swiss cheese holes and will snap. I have yet to achieve full honeycomb but I think a stable temperature between 115 and under 130 would be used. Try purging on no heat for about 8 hours and come back to your chamber. I may leave my vac on for way longer than anyone else but this is how I was taught to do so.
1. move parchment into chamber after hot water bath
2. leave on for 8 hours or check every 2 hours. (just make sure it muffins the tane and moisture out)
3. after you do a no heat vac, put the heat on very low and move up in heat from there. keep an eye on the heat, every degree and minute matters so watch it like a hawk drooling before its prey.
4. after 20 minutes or so the oil will become viscous (meaning inbetween liquid and solid state) and you can start seeing the consistency.
5. if you are unsure about your consistency just turn the vac pump off and take it out of the chamber, once it hits room temp and cools down you will know if you got what you wanted.
hope that helped

I'm not sure I would smoke any of the shit you guys make. 30 min purge? Really? No thanks Slow and Low is the way to achieve amber glass shatter. Keep in mind the amount of time you purge is dependent upon the amount of time you run your pump. Pump on vs Chamber closed off at full vac are completely different. Pump on for the whole purge you can get away with prob min 8 hours but I know most will go 12-15 with pump on. Stay below 100 degrees achieve shatter, the real test (if you've never had truly purged bho you're out of luck here) is the dab test, if you dab and it still has a faint off putting taste or irritation to the lungs, not done yet.

so it seems like 2 things are needed:

#1) low consistent heat (100F for shatter) and...
#2) multiple vacuum runs (like more than 5+)

just one thing that concerns me though is this:

chef oli said:

I start out with no heat and leave it on for 8-12 hours while I go frolic the streets of los angeles.

Click to expand...

would leaving my vacuum on for this long without releasing the pressure cause an explosion?

thanks again guys.

see and i put mine on 130 and vacpurge it for 2 to 36 hours depending on the strain to get my gold wax you see to the left in my avatar, that stuff took 12 hours it was 60 grams

wax = higher temps - shatter = low n slow

Grojak said:

I'm not sure I would smoke any of the shit you guys make. 30 min purge? Really? No thanks Slow and Low is the way to achieve amber glass shatter. Keep in mind the amount of time you purge is dependent upon the amount of time you run your pump.

Click to expand...

i know of people finishing the entire process in less than 2 hours.. from packing tube, to smoke.. Ive heard of people spraying instant shatter.... i like to believe in these stories..

many of us, with the lack of extended knowledge will go slow and low...

and then somes are nifty and smart. i would loveee to try some of FD 30 minute shatter. i find that hard to be achievable, but i bets they do it good.

When you hear of those mythical times, your looking at minimal amounts. I can get shatter in an hour that's clean but I don't feel like having to scrap of saran wrap style oil. I think mostly I don't ever wish upon myself a day where im so jonezing for a dab that i gotta literally try to purge a session's worth of oil while people are out buying food. I can imagine the dog hair's just dive bombing my oil from having to move like lightning through the whole process.

Takes longer than 30 mins bro...thanks for the negativity and for not carefully reading what is posted before trashing others. I do only small runs I should've mentioned because it's only for my own personal use. I can purge a g of oil in 3 hours but I'm not trying to rush it either. Take as long as you wish to purge yours

To clarify I release pressure & check my oil that is purging inside of a jar under -25 pressure wrapped inside of a heating pad on high every 30 mins or so... I like to put on physical graffiti & release my first muffin when Kashmir comes on... Then I pump it back up to -25 again til boogie with stu is on I release it again...the 3rd time is usually the charm after another 30 mins or so then I remove heat & leave it to harden at room temp & is sometimes like honeycomb...but it takes a few hours not 30 mins...I meant 30 mins at a time sorry for any confusion. You guys purging for 12 hours more... Is this large quantities? I'm running less than a g usually which is maybe why it's purging so quickly? Or maybe I'm not purging enough? The nail is silent no spark or pop... It's purged right?

I stand by the times I listed...
I run 2-4ozs of plant material at a time..yield 10-15%
Yield anywhere from 1/4-1/2 oz most times

you knowww. you can completely dry wet clothes in a household dryer .. 30 minutes..
commercial dryers can do the same process with bigger quantities, same amount of time..




you can also let wet clothes hang under direct sunlight, outside, and get a finished thorough dry that was as well.. just takes longer..


the process in which you use determines lenth of purge process..


some people leave pyrexes sitting out for a month in a dry dark space..
SOME WHIP, AGITATE, ETC. PRIOR TO VACUUM, to speed the helllllll out of the process with minimal heat, time.




what im saying is.. i really wish people would stop cookin there oil for hours upon hours, upon days straight! ( i have spent many hours myself doing this, and have ruined many batches due to this, im trying to fucken help)


butane is not hard to remove.. if you can try your best to not grab any moisture during the extracting process, you will find the rest of the ride to be pretty quick.. (moisture collected from the surrounding atmosphere adds unwanted tastes to our oil,)
on another note, water in your oil will help remove butane.. but then you have to remove water....


shatter quick..

Grojak said:

wax = higher temps - shatter = low n slow

Click to expand...

not entirely i have had some stuff wax up at 109...
also i dont consider it a real shatter until it has been washed again with a secondary solvent