Posted Thu Aug 16, 2012, 7:07pm Subject: Apology to Alan Adler
I want to publicly apologize to Alan Adler, inventor of the Aeropress, for an incident that occurred back in 2009.
A few of you may remember a somewhat technical discussion about measuring extraction yields in Aeropress coffee. Alan offered a measurement method that was different from the standard one, and generally more favorable to Aeropress methods. I took him to task (somewhat rudely I recall) for changing the measurement protocol simply to make his invention look better.
Well, three years later it seems likely that Alan's measurement method was essentially correct, and I was quite mistaken.
In the past few months, VST has introduced the latest versions of its software that include (among many other things) "full immersion" concepts that seem similar to what Alan proposed.
It is the nature of this sort of research that few conclusions are final and few methods are totally ironclad. But the evidence seems quite strong at this point.
So again, to Alan I offer a sincere apology for my harsh criticism and narrow-mindedness.
To be honest, I'm not sure; I haven't read that part of the thread since 2009. I really have no desire to reread it now, because it's not something that brings back fond memories.
Since you ask, however, my recollection is this: Alan used what we would now call an "immersion-style calculation" to show his Aeropress (used according to his instructions) extracted coffee in more or less a "normal" range (18-22%). I challenged his claim, but I was using the conventional "drip" calculations which most people now believe are inappropriate for immersion coffee (eg, Aeropress, French press, vac pot, etc).
Without getting into too much detail, I believe Alan was essentially correct. My criticism was off the mark.
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