【Who-Cafe Owner – A Local Coffee Advocate Dedicated to Yilan's Specialty Coffee】
Kai-Wei Lin, better known as “Who-Cafe Owner”, founded Who-Cafe in Yilan, Taiwan. He is also a certified roaster by the Specialty Coffee Association (SCA). For him, coffee is more than just a daily beverage—it’s a bridge connecting flavor, culture, and lifestyle.
Over the years, Who-Cafe Owner has played a pivotal role in nurturing Yilan's specialty coffee culture. In addition to running a café, he regularly hosts entrepreneurship workshops, participates in coffee competitions, and explores creative ways to introduce coffee into everyday experiences.
With practical expertise and passionate advocacy, he aims to make quality coffee accessible and enjoyable for everyone.
【Easy to Disassemble and Clean – Zero-Hassle Workflow for Home Brewers】
Who-Cafe Owner introduces the Femobook A4Z, developed in collaboration with 1Zpresso. The grinder features the ZP6 burr set, originally designed for pour-over brewing, known for its excellent grind consistency and minimal fines.
The A4Z comes with a brush, a blower, and a carry case for added convenience. Its magnetic modular design allows all parts to be disassembled by hand—making cleaning, reassembly, and zero calibration intuitive and efficient.
Additionally, the grinder automatically stops once it detects all beans have been ground. A magnetic brush, included with the unit, adds a charming touch while helping sweep residual grounds from the burrs during operation.
【Who-Cafe Owner's Review: This machine truly captured my heart!】
Who-Cafe Owner praised the A4Z for its smart construction and magnetic assembly, which makes the user experience clean and streamlined. He also noted that the slow RPM motor mimics the pace of manual grinders, preserving more of the coffee’s delicate aromatic compounds.
Thanks to the ZP6 burr set and stable low-speed motor, the A4Z delivers a cup with clean and distinct flavor clarity, verified through his own tests.
Who-Cafe Owner emphasized that the A4Z inherits the design philosophy of the ZP6, resulting in an outstanding pour-over performance. Compared to manual grinders, the A4Z reduces physical effort while maintaining quick disassembly and cleaning—a combination that, in his words, “truly captured my heart.”
His final recommendation: If you're a pour-over enthusiast considering an upgrade from a manual grinder, the A4Z is an ideal choice. For those who prefer espresso-style brews, consider the Femobook A5 or A68 instead.
Note: The content above is excerpted from the YouTube video by《Who Cafe Roasting虎咖啡自家烘焙咖啡館（虎咖啡）》.
