Grinder Technology & Performance MOC¶

Grinder performance is determined primarily by burr geometry, burr size, motor speed, and the grinding path from bean to cup. The two dominant burr designs — flat and conical — produce different particle size distributions with distinct sensory implications: flat burrs tend towards a narrower, more uniform distribution associated with clarity and brightness, while conical burrs produce a bimodal distribution that contributes body and sweetness. Motor speed, retention design, and dosing system further differentiate grinders at both home and professional scales. This MOC organises all technical knowledge about how grinders work and how to evaluate their performance.

Deep Dives¶

Article	What it covers
How Grinders Work	Burr mechanics, particle formation, and the grinding process
Grinder Types	Overview of grinder categories by burr type and drive system
Grind Consistency	Why uniform particle size matters for extraction
Grind Size Distribution	Fines, target particles, and boulders — and their brewing effects
Particle Distribution	The distribution curve and how to read it
Recent developments in Grinders	Modern burr designs, retention features, and single-dose technology
The Evolution of Coffee Grinders	Historical development from hand mills to high-precision burrs