Zerno Z1

Equipment notes

Zerno's Z1 is a premium single-dose electric grinder hand-assembled in Chicago, USA, using 64mm flat burrs. Burrs can be chosen from high-end third-party sets such as SSP (High Uniformity, Multipurpose, Unimodal Brew) or Mazzer 233M, so you select the particle character at purchase. It has a precision dial reading in microns and an auger pre-breaker that cracks beans first to reduce burr load. Flat burrs pursue clarity and extraction uniformity through a narrow distribution, and the character shifts with the chosen SSP burr, from the transparent cup of High Uniformity to the broad utility of Multipurpose. The micron-reading dial favors setting repeatability and logging. A constant-speed brushed motor makes it an all-method grinder spanning every brew style. It suits serious home baristas who want to design cup character by burr choice and manage settings numerically, and users handling espresso and filter broadly.