I just roasted 5 different profiles on a wet processed Ethiopian and every single one came out very bitter. I am posting this as a “live update” my thoughts and how I am going to move foward. And if people have a similar experience. I’d hope this is a thread where we can share those experiences.
So there have been problems with the update recently. But I am not sure that can be the source of this problem. What I think is the most likely source is the drastic weather change, it is 20F cooler and 20% less humid. (80F,80RH vs 60F,60RH). In order to test this. I’m going to re-roast the same profiles (it’s still as cold, actually a little bit colder 53-60F, with a batch sizes of 45g instead of 55g. And then I’ll roast a 3rd set with a flat fan setting of 80%. 4th set with 76% flat fan and a 5th set where I turn of the “time calibration” setting, using the orignal profles where I used a higher fan 84-84 to compensate.
The reason I am not going to change the profiles, is becasue I arrogantly have full confidence in them. And this test will cost me most of my 5lb bag of washed Ethiopian. But again they are coming out super bitter…maybe it’s the bean, I’ll also be testing other beans and contribute those results later.