Ok so the 2025 season is on it s way and preparing and organizing for my options
And one of the products i wish to make is water
Hasj from fresh frozen biomass in a 500 L vessel
So a lot of these Chinese water hasj extraction units are advertised as are usa brands but very little info about the process is talked about
Here
Questions !
What is considered the average volume of 1 kg of fresh frozen ?
In my old days i think it was about 23 liters
Meaning that a 50 U.S. gallon (189 liters ) extraction unit can hold approx 8.2 kg of wet fresh frozen biomass approx 17.6 pounds
Is this correct ???
I am considering this endeavor in marocco where electricity is a thing so
I am contemplating of cutting flowers ( buds ) from the field spraying these with liquid nitrogen and straight to the water hasj extractor
Anybody working this way ?
On these modern Washing units what is the average run time for a load ?
I mean really the time needed to have all buds submerged in ice water and knock the trichromes off and opening the Valve to get the water filtered???
This info I need to make a calculations on possible process volume
As always thx
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You should be at minimum running 35-45 lbs of wet frozen material at a time on a commercial unit. Which is around a 60-95gal vessel iirc for comfort with water and ice all in motion.
If building a Chinese unit grab a 650L vessel, make sure you have atleast a 8-10” “filter plate”(false bottom) you can remove and allow biomass to be easily removed and washed out of the vessel. Put a multi level perforated paddle or conical flat plate with ridges on a spindle for your paddle hooked up & fastened to a top mounted motor with variable speed. Setup additional filtration and collection vessels you can recirculate your water through after filtration and into a cold bath or chiller to run back into your wash vessel that way you minimize needs for bulk amount of water per wash and can achieve a consistent cold temp each wash.
Average wash time minimum varies per strain and per washer. Not all washers wash the same. 
Ideally I’d wash between 10-20 minutes first wash and have a continuous varying washes depending on whether it yields nicely on the first collection or not. If you dumped you know the next few will continue to dump but may change in color if not careful keeping parameters, you may see increase in yields or decrease in yields depending on the integrity of the resin and how it affects the recirculation of the water as well, which is another reason to continuously cold recirculate your wash water and filter it to ensure its efficency. Minimum per wash “batch” you should be washing the entire batch around 45-90 minutes depending on how well it dumps and the color is coming out each pull.
Also it’ll be good to freeze with Ln2 but don’t go directly into the washer. Put bulk that has been flash frozen into the deep freezer or a walk in freezer set to -1 to -10°f to allow it to acclimate close to wash temps and become not so brittle after its initial flash freeze, while also keeping all your trichomes intact, VOC’s and terps as present as possible.
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Cool 
As for change of color this is likely feu to chlorophyl can this not be rinsed of to certain extent?
Correct from beating the bio to much or it being pulverized from the temps being so sheer it breaks the bio down while you mix.
I’m always down to help brother
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Alright makes sense !
Whats beeing used in our industrie as addities to the water ?exept for ice ?
When reading available literature one can notice that trichromes of different plants then cannabis are sometimes extracted with aditional water soluble reagents to enhance theletting go of the trichrome
@moronnabis knows more about this care to share ?
Another option I am contemplating is adding
Different water soluble compound to lower the freezing point of the water such as 
Glycerine
a 50/50 water glycerine mixture will freeze at way lower temps not sure hoe the Bud will handel this
Hydrogenperoxide
Hydrogenperoxide mixtures
Salt /brine mixtures
I have used these mixtures beforewith dry buds water extraction but more for densety control then to manipulate temperature
What are your thoughts ?
I find it to be a sweet spot being between 29.5-33.3°f any going colder ends up in sheering of the water and mimicking a frost on the inside of your vessel which then starts to capture free floating trichomes and will ultimately lower your yields.
With a ice chilled vessel I can keep a regulated 30-31° consistently each recirculation, if I had a membrane I’d run it back through a water chiller set to 33° to maintain a relative cold temp water and clean it down to a fine micron while also membrane willing removing VOC’s to be utilized for other formulations
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Yeah but how will a frozen Bud behalve when placed in au of above mentioned mixtures
I know that the peroxide mixture bleaches the trichromes at least 2 schades but if nor rinsed well leave a district taste
There seems to be a consensus among extractors that the buds neet to soak 10 minutes approx before aggitation to make it all less Britle but wondering if addities like glycerine or calciumcloride while supressing the freezing point would not lubricate the biomass as well
I’d imagine if one were to utilize a secondary solvent you could run glycerine but my concern would be separation and the quality of the the trichome once the glycerine has ahold of the compounds within the trichome. I know that glycerine can be used as a base for syrups and a natural infusion takes place over the time of 1.5-2 weeks time. So my main concerns would forsure be leaching of oils and then the removal of the glycerine since I don’t believe it would lyophilize the same as water leaving behind a pristine encapsulated head
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One interesting idea is the use of a nanobubble generator - i have one now but am not totally set up to use it for hash yet
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