Open blast vs. closed column pressurized

So, what's the difference between those two methods? I am looking to buy small (50-90g) BHO extractor. Of course looking for maxxmimum yield of extracts.

Also, can someone give me some tips for using it? Fresh frozen or dry frozen? Quick blast or slow blast? Open or pressurized?

You sound like you shouldn't be playing around with something potentially as dangerous as a bomb.

Be careful out there.

OldMedUser said:

You sound like you shouldn't be playing around with something potentially as dangerous as a bomb.

Be careful out there.

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I've done it before, but thanks for "warning". I am asking something else.

KonopCh said:

I've done it before, but thanks for "warning". I am asking something else.

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An open blast leaves a lot of goodie behind and should be done on dry material. I generally use good sugar trim and popcorn bud for BHO so dry it fast just out in the open to save terpenes then either freeze it in sealed jars until I have all I want for a run or use it as soon as dried.

If you have a well designed pressure vessel to use that's a better option as far as yield goes.

I use two boiling balls with a long coil of copper tubing to distill the butane into my deep freezer and then re-use it a few times so I can do up to 10x as much pot with the same amount of 9x purified butane.

Butane boils at -0.5C so if it's kept below that temp can be used like ISO or ethanol. It's vapour pressure is a lot higher than those so evaporates much faster but if you work fast you can get a lot more processed per can of 'tane. Just like doing a QWISO wash.

I was thinking more about that setup:



You know, just a tube with two valves - one on the top and one at the bottom.

KonopCh said:

I was thinking more about that setup:

You know, just a tube with two valves - one on the top and one at the bottom.

Click to expand...

Nice!

Can you just stick a can of butane upside down on that to flood the chamber or need a big tank of butane and special fittings?

I could use a rig like that to blast test batches on to a large silicon sheet I have.

I don't even like BHO anymore and just make it to mix with dry sift to make what I call Honey Hash. Got a few friends that really like it and help support my medical growing.









Really tasty stuff.

KonopCh said:

So, what's the difference between those two methods? I am looking to buy small (50-90g) BHO extractor. Of course looking for maxxmimum yield of extracts.

Also, can someone give me some tips for using it? Fresh frozen or dry frozen? Quick blast or slow blast? Open or pressurized?

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You can soak longer with a pressurized system, and achieve higher yields, but not necessarily quality product, unless you keep the temperature below around -30C.

The longer you soak, the more non target elements you pick up, along with your targeted ones, and reducing the temperature slows down the dessolution rate of all the molecules, but the longer chain heavier ones like C-21/32 plant waxes, C-40 b-Carotene, and C-55 Chlorophyll/Pheophytin, are slowed down more than the our C-10 through C-23 targets.

You can do the same thing with a thermos and butane that's subzero, and no pressure.

See attached picture of our pressurized and vibrated tube..........

Consider taking a bigger step, and building/assembling your own Lil Terp passive extractor, where you can control the soak time by simply turning it upside down, and you can recover the butane for reuse. Here's a link to how I made mine, along with a dirty peeecture:

https://web.archive.org/web/2016030...h.com/passive-butane-extractor-and-reclaimer/

Note that since I built the Lil Terp from scratch, parts to assemble a Lil Terp design from off the shelf components became available from places like Glacier Tanks.

https://www.glaciertanks.com/

PS: In answer to wet or dry, I prefer to pull the fan leaves and hang for 5 to 7 days, or until the small stems snap. Less water bulk to deal with, and still aromatic.

KonopCh said:

I was thinking more about that setup:

You know, just a tube with two valves - one on the top and one at the bottom.

Click to expand...

Purdy to look at, but just so you know, ASME Section VIII pressure vessel code requires 400 psi minimimum rating for LPG, and at best that tubular sight glass is rated around 100 psi.

We considered this design as well, and even looked at getting the glass coated with clear PTFE for added strength, but the clear PTFE wasn't clear enough, so we dropped the project.

If you seriously want to gaze upon the extraction in wonderment as the magic progresses, you can use a sight glass design that compresses a wafer of borosilicate, as opposed to putting a borosilicate tube in tension.

PS: The reason that ASME requires that 400 psi rating, and that the pressure vessel not be filled beyond 80%, is because both the liquid and the vapors can expand with temperature changes. Liquid expansion is several thousand pounds per square inch, hence the proscription beyond an 80% fill, and even mixtures of propane and butane vapors can exert hundreds of pounds pressure.

See attached:

OldMedUser said:

I don't even like BHO anymore and just make it to mix with dry sift to make what I call Honey Hash. Got a few friends that really like it and help support my medical growing.

View attachment 4363849

Really tasty stuff.

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Hee, hee, hee, I agree!

My first batch. Only 29g.

The pot grinder I pressed that leaf onto the hash with was lent to a friend years ago and lost in the sands of time but she showed up here about 3 months ago and returned it.

Time to do a new batch but I'll have a dozen of those when I'm done! lol