Which is a 10% drop in extraction efficiency…or is it?!?
Extraction efficiency is defined as Input cannabinoids / output cannabinoids x 100
== (input potency x input weight) / (output potency x output weight) x 100.
Let’s imagine 10kg of 10% THC biomass and 1kg “yield”.
If we’ve done REALLY well, and hit 95% THCA == 84% THC then you’re looking at 84% extraction efficiency.
If you only managed 75% THC then you’re looking at 75% “extraction efficiency”.
Working the math for the “you done good” we have.
9% yield == 900g x 84% THC == 756g THC == 75.6% efficiency
Vs 84% if “yield” was 1kg. (Pretty close to “10%”: 84-8.4=75.6).
At the other end:
900g at 75% => 680 of THC or 68% extraction efficiency.
Vs 750g or 75% efficiency. (Again pretty close, but not exactly 10%: 75-7.5=67.5)
Which is why I suggest actually following the cannabinoids not just the cadabinoids (that which can be dabbed)
Edit: for those who haven’t noticed the inline link, and also don’t grok how 95% THCA and 84% THC are equivalent above.