Haven’t used my Chemex for months - been relying on V60. Not been able to hit the tasting notes of some Ethiopian Anaerobic Natural. Did a couple of V60s - extraction yield was just under 23% for the first and only 0.3% lower for the second despite opening the grind on the EKs by two spots which is a lot given the EKs range is 0 - 16.
Through the Chemex, with the grind as coarse as it can go on the EKs, the extraction yield came out at 20.5%. The difference in the cup compared to the V60 was pronounced. Tasting notes of lemon, Earl Grey and hint of tropical fruits - none of which present in the V60 cups.
Guess I will stick with Chemex for the foreseeable.