Burr Grinder

A burr grinder uses two abrasive surfaces (either flat parallel discs or nested cones) set a precise distance apart. The user adjusts that gap to set grind size, and the burrs cut beans to that target rather than smashing them randomly the way a blade grinder does. Uniformity matters because every off-size particle either over- or under-extracts. Commercial Brooklyn bars typically run a Mahlkönig EK43 or similar high-end flat-burr grinder for batch brew and a Mythos or Mahlkönig E80 for espresso.