Mechanical Coffee Instruments
Sou Sik
Precision hand grinders built for feel.
The P-1 combines a planetary gear system, replaceable burrs, and low-retention construction in one hand grinder. It doesn't just grind beans—it makes grinding a felt mechanical rhythm.
Design Philosophy
We don't just make grinders—we make a connection between mechanics and coffee.
Sou Sik's product language comes from the mechanical structure itself. Gears, burrs, grip, resistance, and sound are not hidden parts—they are experiences felt daily. P-1 is our first answer to "a hand grinder that should be more effortless, more stable, more fun."
P-1 Highlights
Designed for light roasts, daily use, and the hands-on enthusiast.
Planetary Gear
The planetary gear system multiplies torque, reducing actual force needed. Even light-roast beans grind smoothly without straining your wrist.
53mm Burr System
Large-format conical burrs balance efficiency and particle-size consistency, ideal for pour-over and espresso exploration.
Low Retention
Minimal retention and easy-clean design keeps each brew pure and predictable, with straightforward maintenance.
Precision
Let the structure speak, and the feel linger.
The planetary gear system makes grinding resistance more controllable; 440C stainless steel burrs and a replaceable burr system open up more brewing possibilities. This isn't just a tool defined by specs—it's something you'll want to pick up every day.
View ProductJournal
Coffee knowledge and grinding notes
How to tell if a grinder suits light roasts
Understanding grinders from torque, burr geometry, particle distribution, and feel.
Why planetary gears reduce effort
A simple explanation of P-1's mechanical core.
Daily maintenance guide for hand grinders
Disassembly, cleaning, and preventing stale grounds odor.