The Brew Journal

Laboratory Field Notes & Extraction Science • Ghent Studio

Dialing in the Flair 58 & Comandante C40: The 9-Bar Manual Extraction Guide
FEATURED RESEARCH • 6 min read

Dialing in the Flair 58 & Comandante C40: The 9-Bar Manual Extraction Guide

A visual step-by-step field tutorial: dialing in dense washed Ethiopian coffees at 9 bar with declining lever profile, 12 clicks on the Nitro Blade burrs, and active pre-heating.

Lukas De Smet — Ghent Workshop Read Complete Study →
Archival Monographs

Recent Publications & Guides

Interactive Engineering Tool

Mathematical Brew Ratio Calculator

Compute exact water mass, beverage yield, and targeted Total Dissolved Solids (TDS).

Dry Koffee Dose
12g (Single) 18g (Basket) 30g (Carafe) 60g (Batch)
Water Ratio (1 : X)
1:14 (Dense) 1:16 (Gold Standard) 1:18 (High Clarity)
Required Total Water Mass Brew water at 93°C – 96°C
TARGET TDS:
TARGET YIELD:
Tip: For municipal Benelux water, remineralize zero-TDS water with Lotus Water drops or Third Wave Water to achieve target TDS without scaling.
Micron Calibration

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

Printable Studio Assets & Flavor Wheel

High-resolution vector flavor wheels, extraction diagnostic flowcharts, and dial-in log sheets.

Download Vector PDF
01 / SELECTION

Premium Brands Only

De'Longhi, Philips, Siemens and Sage — new, in original packaging.

02 / LOGISTICS

Benelux Delivery

Usually delivered within 5–10 working days.

03 / COMPLIANCE

2-Year EU Guarantee

Plus 14 days to change your mind.

04 / COMMERCE

Native Benelux Checkout

Secure payment with the methods shown at checkout.

Ghent Studio Concierge 💬