Hello, I’m new to ethanol extraction so please forgive my ignorance. I have chosen food grade ethanol 190 proof as my solvent which costs me $136 per litre. It’s very expensive compared to other solvents used for extraction but my goal is to make my meds as clean as possible so denatured ethanol and butane are not an option for me and my pockets aren’t deep enough for CO2.
I am going to be experimenting with bucket tek, I have a RE-301 rotary evaporator and a Panda spin dryer as a centrifuge ready to go.
Once again, forgive me… But how much ethanol should I expect to recover per litre of 190 proof going in? And approximately what proof would it be watered down to?
Just looking for a rough idea to get me started on my journey.
I lose about 1lb of ethanol to the biomass for every 10lb of biomass processed. that is not in a panda, and requires an 8 min spin at 1000G. (panda is a hair faster)
and a little more at devol/decarb.
if you’re extracting cold, the bulk of your solvent will still be at 190 coming out of the rotovap.
I haven’t seen a drop-off, and have generally assumed those reporting said drop-off where not checking their proof (and presumably extracting warmer than I do).
Actually just 190 proof, food grade. No denaturant, just water.
What’s interesting is, after recovering ethanol about 5 times total, my proof has dropped from 190 to 188 AT WORST.
There is a detectable (olfactory) amount of light terpenes, the same smell most ethanol extractors are familiar with—words won’t really help here.
However, I have been reusing this 188-190 EtOH with nearly identical results each time. Today, I washed the biomass with Fresh 190, once I’ve evaporated this batch I’ll report back.
Regardless, I think it’s about time to set up a redundant molecular sieve—one capturing moisture, aromatics and hydrocarbons (13X) and one regenerating!
Anywho, maybe that long post about Azeotropes has some hidden gems ¯_(ツ)_/¯.
I’d assume so as well, after all we are all aware now that terpenes usually act as a cosvent for the cannabinoids.
I’ve heard some answers from some individuals about reuse affecting the polarity of the ethanol/whatever mixture. I’ve also seen quite an obsessive fascination over proofing the ethanol above 190 proof.
Ultimately, the decision making should follow the quantitative analysis, but that shit takes time…I’m getting there. My young brain is very impatient, but I’m gettting there