The Brew Journal

Laboratory Field Notes & Extraction Science • Ghent Studio

Conical vs. Flat Burrs: Particle Distribution and Flavor Profile Separation
FEATURED RESEARCH • 8 min read

Conical vs. Flat Burrs: Particle Distribution and Flavor Profile Separation

A forensic comparison between the Comandante C40 Nitro Blade, 1Zpresso K-Ultra, and Option-O Lagom Mini: how bimodal and unimodal grinds affect the sensory experience.

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Required Total Water Mass Brew water at 93°C – 96°C
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Comparative Grind Size Matrix

Direct dial translation across our 3 benchmark conical & single-dosing grinders.

Brew Method Comandante C40 MK4 1Zpresso K-Ultra Niche Zero Particle Size Extraction Notes
Espresso (9-Bar Lever & Pump) 8 - 14 clicks 3.0 - 4.2 rotations 10 - 20 marks 180 - 250 µm High resistance, fine micro-bed, 25-35s extraction
Moka Pot / Aeropress Short 15 - 20 clicks 4.5 - 5.5 rotations 22 - 30 marks 300 - 450 µm Dense extraction, full body, medium-fine
Hario V60 / Conical Pour-over 22 - 28 clicks 6.0 - 7.5 rotations 38 - 45 marks 500 - 700 µm High clarity, distinct origin acidity, 2:30-3:15 draw
Chemex Bonded Thick Filter 28 - 34 clicks 7.5 - 8.8 rotations 45 - 52 marks 700 - 900 µm Slow percolation, pristine clarity, zero sediment
Cupping & French Press (Immersion) 32 - 38 clicks 8.5 - 9.8 rotations 50 - 58 marks 900 - 1100 µm Low fines, sweet caramelization, 4-minute steep

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