yeah, the longer you kief, the lower the potency is on the collected material.
the balance is similar to any extraction method, where the quality of the extracted material goes down if you attempt to get ALL the goodies.
On the extraction side, when your input is 40-45% target, yields are definitely higher per unit solvent or unit biomass, than when your starting material is 10-12% target. It just about balancing what’s left in the kiefed material to the overall work load and energy costs. recovering ethanol is not cheap.
You are correct @Trichomie, GW chose to kief first. At least that’s what my reading says. If you’ve followed through the various discussions around here, eg Extracting kief
you may have noticed that when extracting with CO2 it might not make sense to kief first. because the solvent doesn’t really have a high affinity for our target. so you need to use more solvent if you pack more cannabinoids in the tube.
I’ve done a couple of small scale extractions.
Enough to know that there are hurdles.
I may also have said something rash like “yeah I can figure that out” to my partners in the last couple of days. I’m hoping Jan’s R&D goes well 