Planetary Gear System
The core value of the planetary gear system is converting direct pushing force into smoother, more controllable mechanical motion. For users, the most obvious difference is that light-roast beans no longer strain the wrist.
Technology
Not about specs—every structure has a reason.
Sou Sik's technology section explains to enthusiasts and general users alike: why this grinder feels smoother, more stable, and worth using every day.
440C Burr System
The P-1 uses 440C hardened stainless steel burrs. The point isn't just hardness—it's the balance between burr geometry, feed efficiency, and particle-size performance.
Low Retention Design
Low-retention design reduces stale grounds buildup, minimizing flavor interference and making daily cleaning simpler. For daily brewers, this matters more than any single impressive spec.
Why does effort reduction matter?
The problem with hand grinders isn't whether they can grind—it's whether they can grind stably, comfortably, and make you want to use them every day. When grinding resistance is too high, users unconsciously change their applying force angle, causing unstable feel and making the entire brew experience unpleasant.
P-1's design direction makes the grinding process more controllable. Rotation count may increase, but each rotation's burden is reduced, and the long-term feel is much friendlier.
Exploded View & Structure Details
