AndyS wrote:Excuse me if I missed this, but do we understand why the big conicals require fewer grind adjustments?
Not to my knowledge. Do you have a theory?
I know of no blind, randomized, tasting experiments on these various grinders other than the small one that I did with a Max vs. a Cadet (Junior), which the Max "won," but which I would not put very much stock into. Jim did his "beat the Robur" comparisons, which would certainly need to be regarded as data of a "preliminary" sort.
The one obvious thing that we can be pretty convinced of is the frequency which these various grinders require adjustment, since there are so many anecdotal reports out there that they are hard to ignore. From these reports it appears that any of the big conicals need infrequent grind adjustments, the larger planars (64mm and above) need frequent adjustments, and the hybrid conical/planar Max appears to fall in the middle.
I know in my own use, that it was rare when I didn't have to adjust my Junior grinders on a daily basis, that my Compak got adjusted once a week or less, and that the Maxs need the grind tweaked a little a couple times a week. The tweaks needed by the Junior were large enough that I threw out shots with some frequency due to required grind changes. This happens seldom with the Max and happened almost never with the Compak. I am referring here to a situation in which the same coffee is being used in a grinder over a period of a week, where the coffee is changing due to aging of the coffee and environmental factors.
As to grind quality as tasted in shots, I think the conicals and the Max are *probably* better if you updose, and probably equal to the large planars if you use smaller (~12-15g) doses, but that is not supported by any data that I have.
ken