When using on-demand grinders (which start from zero RPM and ramp up), the first portion of ground coffee is ground at lower speeds than later portions, resulting in a bimodal particle size distribution where the first half of the dose may be noticeably coarser than the second half.
factualpending
Evidence Quote
“when you do on-demand grinding, the burrs start from zero speed, right? So the first part of coffee that goes out is ground at zero RPM or with lower RPM, and then the rest is once the grinder picks up.”
Created: 8/13/2026, 9:53:38 AM
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