Mazzer ZM Filter Digital Grinder

The Mazzer ZM Filter is built around one idea: you should be able to set grind size as a number instead of a feeling. Its digital adjustment controls the distance between the 83mm flat burrs in microns, so a setting is a value you can write down, hand to the next barista, and return to exactly. Twenty settings store on the display with four programmable buttons for recipe recall, and electronic True Zero calibration means the same number lands in the same place on any ZM in any cafe.

It ships with 151F filter burrs, which is what makes this the filter bar's grinder rather than another espresso grinder. Burrs turn at 1050 RPM on 60Hz power, slow for their size, and a double fan cooling system with electronic control keeps the grounds from heating. Retention runs under half a gram, so single dosing works properly and one origin does not contaminate the next. A bag holder and two lockable ground-coffee canisters come in the box, and the display flips aside for chamber cleaning and burr changes.

This is for the batch brew and manual brewing side of a specialty cafe, or a roastery bench. If you want it grinding espresso, Mazzer sells the 151B espresso burr set, and there is a 151G for higher clarity in filter and a 151I hybrid. Swapping burrs is a deliberate change of purpose rather than something you do daily.