JHCCoffee Alternatively I could use the Brewler to determine the largest and smallest particles that are produced by the NZ and then adjust my1Z setting to hit that. Especially the largest. Would that work? Or is there a flaw in that?
How can the Brewler work at all? You might have 4-5% in each 100Kruve interval how will you visually be able to see how many grinds are in each size range. I understand that the concept of the Brewler is appealing to those who don’t want to sift, but it has no real practical application.
For the sifter use 400 in the bottom (or 500) and the largest size you have in the top be that 1100, 1200, 1400, 1600. I wouldn’t keep changing the sieve sizes, the largest should be a minimum of 2.5x the smaller, up to 4x (as your grind setting gets coarser the intervals need to be wider to capture the same %).
The interval in sieve sizes available is smaller than the standard deviations in grind distribution, so if you measure every sieve interval you may find it difficult to make sense of the data (as many have before you when doing this).
If you want more data points 4 sieves should be enough, 400, 900, 1200 & 1600 give the prettiest curves and more inline with normal grinder standard deviations. Swapping sieves in the holders gets boring quick.
Sizes below 400 don’t really give useful readings.
The value at 400 or 500 will be most informative as to the desired grind setting for your recipe. The grinders may have slightly different distributions, this is to be expected, if they don’t match that’s that…you can’t match them. Differences in measured distribution do not align to brew results in a linear fashion, a wide range gives good results.
Use the sifter to get the brews between the 2 grinders ballpark, then brew a bunch of coffees to confirm & adjust if necessary, when happy they are comparable after a run of comparisons at constant settings, sift again.