The Femobook A4Z is a rechargeable electric coffee grinder designed primarily for pour-over and filter coffee brewing. It incorporates the same 48mm stainless steel conical burr geometry as the acclaimed 1Zpresso ZP6 manual grinder, delivering high clarity, clean cup profiles, and uniform particle distribution optimized for manual brewing methods.

Key Features and Specifications

• Burr Set — 48mm conical burrs (ZP6 geometry) for exceptional grind consistency in medium to coarse ranges.
• Grind Adjustment — Over 3 full rotations with 100 clicks per rotation (0.008mm per click) for precise control.
• Motor and Speed — Low-RPM brushless motor (~54 RPM) for quiet operation and preservation of delicate flavors.
• Capacity — Holds up to 30-35g of coffee beans, suitable for single-dose or small-batch grinding.
• Power — Rechargeable with three replaceable 18650 batteries (6000mAh total capacity), providing 100+ brews per charge via USB Type-C.
• Build and Design — CNC-machined aluminum alloy body; magnetic catch cup, bean hopper, and cleaning brush for tool-free disassembly and low retention.
• Dimensions and Weight — 130 × 60 × 245 mm; approximately 2.6kg.
• Available Colors — Black or Champagne Gold.

The Femobook A4Z excels in producing bright, crisp, and detailed pour-over coffees with minimal fines and near-zero retention. Its cordless, compact design and user-replaceable batteries make it convenient for home use, while the low-speed grinding helps maintain aromatic compounds in light-roast specialty beans. Note that it is specialized for filter brewing and not recommended for espresso grinding.