Option-O LAGOM GDS – Dual-Geometry Grinding System
The Option-O LAGOM GDS is an uncompromising Dual-Geometry Grinding System for anyone who wants to not just grind coffee, but precisely compare and understand it. According to Option-O, GDS stands for “Grinding Dynamics Study”: a platform that lets you use different burr geometries directly side by side – in a single, precision-built system.
“Flat. Conical. Unified.” With the LAGOM GDS, you experience the same coffee with different burr geometries and compare the differences in clarity, body, texture, and extraction directly, side by side.
At a Glance
| Burr Configurations |
Conical + Flat (Mizen HC100TX + Mizen 102OM) or Flat + Flat (Mizen 102OM + SSP 102HU) |
| Motor & Drive |
1650 W brushless DC motor, belt-driven single-motor dual-geometry system |
| Speed Range |
100–500 RPM (Conical) / 200–2000 RPM (Flat) |
| Dimensions (W×H×D) |
28.5 × 40.5 × 18 cm |
| Weight |
29 kg |
| Color Options |
Black or Silver |
| Power Supply |
220–240 V, Swiss cable |
| Warranty |
1-year manufacturer's warranty against manufacturing defects + lifetime support |
| Availability |
Pre-order – shipping expected September/October 2026, according to Option-O |
Pre-order notice: The LAGOM GDS is manufactured in small batches; according to Option-O, each unit is individually assembled, tested, and inspected. The manufacturer states an expected shipping start between September and October 2026 for current pre-orders – delays are possible with pre-order products. We'll let you know as soon as we have a more precise date for your order.
Who It's For
The LAGOM GDS is aimed at enthusiasts, small roasters, and cafés who want to not just read about different burr geometries, but compare them in their own cup – for example, to explore a range of light and dark roasts in a targeted way. You'll find more options from our range in the Single Dose Grinders or Prosumer Single Dosing collections. For an investment of this scale, we're happy to advise you personally – book a consultation.
The Duality of Extraction
The LAGOM GDS was designed to make the choice between flat and conical less theoretical. One burr set may emphasize more clarity and separation, another more texture and body – with the GDS, you test these differences directly side by side.
The Conical+Flat configuration combines the 100 mm Mizen HC100TX conical burrs with the 102 mm Mizen 102OM flat burrs – exciting if you want to explore both classic, full-bodied espresso profiles and modern, light roasts with high clarity. The Flat+Flat configuration combines the Mizen 102OM with the SSP 102HU flat burrs and is aimed at anyone who wants to compare two different flat burr characters against each other.
PCS Technology for the Conical Burr Set
The GDS's Preliminary Crushing System (PCS) is specifically designed for the 100 mm conical geometry. It regulates bean flow, reduces crowding, and stabilizes feed into the burr chamber. This reduces the so-called bean-column effect, where grind size can shift as fewer beans remain in the hopper/funnel. According to Option-O, this leads to better grind-to-grind consistency, a wider sweet spot, and a more balanced cup profile.
Stability Under Load
Inside works a 1650 W brushless DC motor with Closed-Loop Control, designed to maintain a stable speed even with dense, light-roasted coffees. An additional thrust bearing structure supports the burr assembly under axial load and helps maintain alignment and stability while grinding.
Geometry-Tuned Belt Drive
Flat and conical burrs have different ideal speed ranges. That's why the GDS uses a belt-driven system that tunes power transfer to the respective geometry: 100–500 RPM for conical and 200–2000 RPM for flat. According to the manufacturer, the belt drive also reduces vibration and heat transfer into the grinding chamber.
Analog Control and Workflow
The GDS deliberately forgoes a digital interface in favor of direct, analog controls: grind size and speed are set using clearly marked dials, on a micron basis and not limited to a single rotation. A dedicated Purge Control and a switchable Static Neutralizer ensure clean transitions between settings.
The fully magnetic front platform can be swapped tool-free and supports different workflows – straight into the portafilter, into the Dosing Cup, into a Blind Shaker, or into other accessories. Portafilter support covers 49–58 mm baskets; according to the manufacturer, cup height is usable with 110/140/170 mm clearance.
Technical Specifications
| Burr Set |
102 mm Flat or 100 mm Conical |
| Configurations |
Conical + Flat or Flat + Flat |
| Grind Range |
Turkish to French Press |
| Adjustment Resolution per Rotation |
0–1250 µm (Conical), 0–750 µm (Flat) |
| Typical Dynamic Retention |
<0.1 g with knocker |
| Dimensions |
28.5 cm (W) × 40.5 cm (H) × 18 cm (D) |
| Weight |
29 kg |
| Speed |
100–500 RPM (Conical), 200–2000 RPM (Flat) |
| Construction |
CNC-machined 6061-T6 anodized aluminum and stainless steel |
| Precision |
±0.01 mm or better across all critical components |
| Bean Capacity |
Funnel up to 80 g whole beans; supports continuous grinding for batch brewing |
| Motor |
1650 W brushless DC motor with single-motor dual-geometry drive |
| Operating Modes |
Manual Power Switch, Auto-off with Torque Detection, Purge Mode |
| Portafilter Support |
49–58 mm basket |
| Cup Height Clearance |
110 / 140 / 170 mm |
| Power |
220–240 V |
| Cable |
Swiss cable |
| Manufacturer's Warranty |
1-year limited warranty against manufacturing defects; lifetime support |
What's Included
- LAGOM GDS with selected burr configuration: Conical + Flat with Mizen HC100TX (Conical) + Mizen 102OM (Flat) or Flat + Flat with Mizen 102OM (Flat) + SSP 102HU (Flat)
- 2× adjustable Portafilter Fork modules
- 2× Grind Cup platform
- 2× 58 mm Dosing Funnel
- 2× Multipurpose Grind Cup
- IEC power cable – Swiss cable when ordered from Coffee Coaching Club
Available from the Coffee Coaching Club – your destination for high-quality coffee grinders, single-dosing setups, barista equipment, and personal advice in Switzerland.
Frequently Asked Questions
What is the difference between the Conical+Flat and Flat+Flat configurations?
The Conical+Flat configuration combines the 100 mm Mizen HC100TX conical burrs with the 102 mm Mizen 102OM flat burrs and is ideal if you want to experience both full-bodied, classic profiles and clear, modern profiles in direct comparison. The Flat+Flat configuration combines the Mizen 102OM with the SSP 102HU flat burrs and is aimed at anyone who wants to compare two different flat burr characters against each other.
When will my pre-order be delivered?
According to Option-O, shipping of current pre-orders is expected to begin between September and October 2026. Each unit is individually assembled, tested, and inspected, which means the exact delivery date may shift depending on order volume. If you have questions about the status of your order, feel free to contact us directly.
What warranty applies to the LAGOM GDS?
Option-O provides a 1-year limited manufacturer's warranty against manufacturing defects, as well as lifetime support from the manufacturer. For questions about warranty claims, the Coffee Coaching Club also supports you locally in Switzerland.
