My apologies for the delay. Kendall finished the laser sizing very quickly; but the results have been head scratchers, so they took a while to analyze.
I am going to put up two posts.
- This first one contains 12 graphs for the 12 grinders submitting samples. Each graph shows the distributions of the two or four samples submitted for that grinder. The title of each graph shows what these are. Glancing at these graphs, you'll see where the hitch lies -- the 18 gram samples aren't always coarser than the 15 gram samples
- The second shows a single analytical graphic displaying the 18 versus 15 gram dose differences for all grinders. Based on this, I discuss the problems with the data and how we intend to proceed.
And here it is -- the most complete set of espresso grind distributions ever collected:
Baratza Vario, Single, Basaric
Versalab M3, Single, Basaric
Ascaso I2, Hopper, Campbell
Lelit PL53, Hopper, Cunha
Macap MXK, Single, Leighton
Compak K10, Single, Schulman
Macap M7K, Single & Hopper, Campbell
Compak K10, Single & Hopper, Cobo
Mazzer Kony-E, Single & Hopper, Ivanitzky
Mazzer Robur-E, Hopper two pair, Lampert
Compak K-10, Single & Hopper, Lundgaard
Baratza Vario, Single & Hopper, Lundgaard
Cimbali Junior, Single & Hopper, Wookie