The Field Grinder — Manual Burr Mill

The Ritual

Before the first pour, there is the grind — the moment where precision begins. The Field Grinder puts that control entirely in your hands, translating each rotation into a consistent, calibrated particle distribution that no blade can replicate.

The Specs

• Grind Mechanism: Manual burr mill — conical ceramic
• Capacity: 36g (approx. 2–3 full espresso doses or 1 large pour-over)
• Dimensions: 60mm diameter × 170mm height
• Weight: 310g — field-portable, carry-ready
• Construction: Stainless steel burr chamber, ergonomic grip body
• Grind Range: Adjustable — fine espresso through coarse French press
• Power: None required — fully manual operation

The Engineering

Blade grinders fracture coffee cells unevenly, producing a bimodal particle distribution that over-extracts fines while under-extracting larger fragments — the root cause of bitter, muddy cups. The Field Grinder's burr mechanism shears beans between two aligned surfaces at a fixed gap, producing a uniform particle size that allows water to extract at a consistent rate across the entire bed. The result is a cleaner, more defined flavor profile with measurable repeatability between sessions. At 310g and 60mm diameter, it fits a jacket pocket, a kit bag, or a minimalist kitchen drawer — no power source, no maintenance overhead, no compromise on grind quality.