I recently ran some 22% CBDa Hemp (according to the COA) through a commercial CO2 extractor.
The hemp weight was 5 lbs, which means there should be 500g CBD in there.
Using sane assumptions that the crude we get out is 75% CBD and extraction efficiency is 90%, I should be expecting a 600g yield each run.
(I used a modification of @Future’s Hemp Processing Spreadsheet
However, I was getting somewhere around half that. What gives? I’ve already sent out samples of the ground hemp pre and post-extraction, as well as the crude.
There are a few things I think might be happening:
- I should have adjusted my recipe for high-CBD hemp, and there’s a lot left in the starting material.
- The hemp isn’t 22% CBDa
- The crude is 150% CBDa
Lastly, anyone know of good resources/formulas for tuning CO2 extraction recipes?