When you refer to Etoh are you referring to the Etoh Pro?
I have always liked pulling vac on a vac flask and pulling the solution through https://www.amazon.com/dp/B07LCKBKCT/ref=cm_sw_r_cp_apa_i_Z5fgFb2VB8BWF those water filters. I would stage them 100-25-1 micron or something like that. Ghetto and probably not the best but it works for under $500 everythang including a pump
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I can buchner filter 30 gallons of etoh in 30 mins. I use a 3000ml buchner funnel mayyed to a 5000ml flask. Using a welch wobl at -25hg.
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Etoh pro= a product https://www.extractcraft.com/shop/etoh-pro?_vsrefdom=adwords
etoh= ethyl alcohol, or ethanol
I dont think I have ever mentioned that product before…or used it…
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What volume of product are you trying to filter and over what period of time? Thanks, Greg
Pressure is your friend
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Well I a gallon at a time. This is Paul winterization the product I’m getting has been very dark lately so as for filtration I would like it to come out light everybody wants blonde products now.
My Buettner funnel is 250 mL.
At that scale and with your goal, I suggest this thread:
If you need anything regarding how one can modify this process to speed it up, let me know, and remember that if you are trying to get that beautiful golden extract (without distilling), the filtration is going to be slow and the extraction should be done as cold as possible.
I have also found that with this process in particular, pushing works way better than pulling. Nitrogen for the win, all day long!
Edit: I also second what @ky_cbd said about graduating your filtration. It is necessary to maximize speed and prevent fouling/blinding of your filters. Super important not to jump straight from extraction to one’s smallest desired pores size.
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Get a larger one
Actually I went from 3x 600ml buchner matted to a 3x 2000ml flask to a 3000ml buchner matted to a 5000ml flask.
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My friend I cannot even find that equipment in Canada here
I’m partial to spools, filter plates, and kegs. These should be readily available in Canada.
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Yeah you could use nitrogen and push at a good psi. If you use a dewaxing column and niteogen with ethanol I’m sure you get great results. I’ve used my diaphragm pumps positive pressure side at 20 psi max with a 5um filter on the vacuum side so I was using technically filtered air to filter it.
My stack went 150um 150um 5um 5um 3um came out pretty yellow. When I used media it came out water clear.
A gallon took around two-four hours and using a dewaxing column it took like six hours.
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Is there a point of too much filtration though at what point do you stop where you’re losing THC,CBD? What micron do you actually want to go down to?
Stainless sintered filters in junction with filter paper can get as low as 1um. I only ever went down to 3um. I hear good things about 150um> 5um> 5um>3um>1um. Well yeah if you use to much media you can filter out cannabinoids however I’m not sure if that’s the case with just filtering/Winterizing without any media involved.
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Depth filtration or scrubbing is where cannabinoid losses tend to stick. Adsorbents are rather fond of them. I’ve not seen filter papers ever catch them either, and I regularly filter down to 0.2um (the necessary pore size to eliminate mold spores). Cannabinoids are smaller than that when suspended in solution.
And @GroovyOctopusLabs, you’d hear much better things about an appropriately graduated system. 150um is massive! Kief and finely ground biomass can move with relative ease through an 80um filter. I can image that would blind the 5um filter pretty easily, dramatically slowing one’s process.
I used to use 100um> 50um> 20um (coffee filter)> 5um> 1um> 0.2um back when all of my filtration was 2D. If you really want that color like one sees with butane slabs, 3D is the way to go. I’ve also done 80um> 20um> 5um and had great results. Extraction process plays a massive role in what post processing looks like.
@Royboy0330, the question of “when is it enough filtration vs did I filter too much out” is a very subjective one. It very much depends on one’s end goal as to determine the necessity of any particular process. End product and end user can change what that looks like.
Many believe there to be more medicinal value in extracting and consuming everything one can from the plant (warm extraction with minimal, if any, filtration). Others believe that the more highly refined, the more one can treat it like medicine. Medical, recreational, edible, dabbable, topical, etc will all likely have a different answer to that question. The retail market is especially weird about what they want,when they want it, and how long until they want something else.
Long story short, what do you think? Your answer is as valid as anyone else’s.
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How’s the speed on this?
Pretty quick but it depends on how quick u can Nascar style swap out filters. I was buying the filters buy the 100s they ended up being about $1 a pop and you could replace a few every kilo depending on material
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