The Femobook A4Z is a rechargeable, all-electric, single-dose grinder made with a clear focus on filter and pour-over brewing. Its thoughtful construction and high-quality ZP6 Burrs deliver a tool for serious filter enthusiasts. Its small footprint makes it the perfect grinder for a limited workspace. Yet, it is a powerful grinder which delivers brews with amazing flavor clarity. 

Key Features

48 mm conical burr set
The A4Z uses the same geometry as the 1Zpresso ZP6 burrs, giving a stable, consistent grind profile suitable for light roasts and delicate filter extraction. The Femobook A4Z has the feel of a hand grinder with its modest speed of only 60 RPM, keeping the grounds consistent en the temperature cool.

Ultra-fine stepless adjustment
You get more than 300 "clicks" worth of adjustment over more than 3 full rotations, with each click corresponding to about 0.008 mm of change.

Low retention with magnetic cleaning brush
Integrated under the burr assembly is a magnetic brush to attract stray particles, helping to minimize leftover grounds in the grinder body. 

Rechargeable battery pack
Powered by three 18650 lithium-ion cells (total around 6000 mAh), the A4Z allows about 30-50 uses per charge. Being battery powered, it frees you from needing an outlet during use or transport; useful for travel, outdoor brewing, or small setups. The A4Z also operates while your USB-C cable is plugged in. 

Tool-free disassembly
Every component that you would want to clean or maintain can be removed without tools; from the hopper to the burrs.

Please note: Only use a 5V / 1A USB charger that complies with safety standards. Do not use fast chargers or chargers with high-output power.