depends how you make it.
Warm, and you can get 50% cannabinoids or possibly less if you try hard enough.
At -40C, I usually hit 65-70% cannabinoids on unrefined EtOH crude. Which is pretty much the same as unrefined hydrocarbon crude in my hands.
why use a 'fuge?**
3-5% solvent loss vs 10-15% solvent loss.
If you’re a good hippie, and buying organic ethanol, then the CUP pays for itself pretty quickly (I recall six months payback just in solvent savings in this scenario) .
If you’re using heptane denatured, you’ll need to do the maths yourself.
**full disclosure: I’m now peddling a 'fuge for this task. I should have built it 5 years ago when it first occurred to me it was the right solution. 