WENDOUGEE Data S Espresso Machine (120V) (Reservoir/Direct Plumb)

Where Engineering Meets Obsession. A Market Disruptor Built for the Serious Barista.

Wendougee arrived on the global coffee stage with no apologies and no compromise. The Data S is the machine that introduced the brand to the world — debuting at the World of Coffee expo in Geneva and immediately drawing attention from professionals who know what a serious machine looks and feels like. It is a dual boiler, saturated group, gear pump-driven espresso machine packed with Italian-grade commercial components, app-based extraction control, and a level of engineering transparency that most machines costing twice as much simply cannot match. This is not an incremental upgrade. It is a category redefinition.

Gear Pump — The Engineering Difference

The Data S centres its entire extraction philosophy around a proprietary Wendougee gear pump — a fundamentally different pump architecture to the rotary and vibratory pumps found in most prosumer machines. Gear pumps deliver exceptionally smooth, low-vibration pressure with precise, real-time controllability — making them the ideal foundation for pressure and flow profiling. A WIKA pressure sensor from Germany monitors pump output continuously, feeding live data back to the machine and the E-Bar app, allowing the system to self-adjust and hold pressure at target values with a consistency that vibratory pumps cannot approach. A Gicar flow meter — the same commercial-grade component found in professional bar equipment — measures water flow to the group in real time, enabling precise volumetric or gravimetric stopping with accuracy that budget flow meters simply do not deliver.

Dual Boiler — Serious Thermal Architecture

The Data S is built around an independent dual boiler system of genuinely substantial capacity. The 1.8-litre stainless steel steam boiler is cylindrical, fully insulated, and generates the kind of dry, powerful steam that textures milk with real speed and force. The 0.8-litre stainless steel brew boiler is engineered in an unconventional square form factor, directly integrated with the saturated group head to maintain thermal mass and temperature stability at the point of extraction. Both boilers are managed by individual PID controllers, each independently adjustable through the E-Bar app in precise increments. The entire system is powered by 2,200W — drawing on a dedicated 20A circuit — and reaches operational temperature in approximately five minutes. Brew and steam simultaneously, without thermal compromise on either circuit.

Saturated Group Head — Thermal Stability as a Foundation

The saturated group head is the visual centrepiece and thermal soul of the Data S. Unlike semi-saturated or heat exchanger group designs, a fully saturated group is in constant contact with brew boiler water, maintaining a stable, uniform temperature from the moment the shot begins to the moment it ends. The result is a group head that is always ready, always consistent, and never a source of shot-to-shot temperature drift. It is mounted in a polished stainless steel housing with a mechanical lever actuated by a beautifully crafted wooden switch — a tactile, intentional design choice that signals the machine's character from the moment you engage it.

E-Bar App — A Connected Extraction Ecosystem

The Data S is not a machine you simply operate — it is one you programme, analyse, refine, and share. The E-Bar app connects to the machine and transforms every session into a live data environment. Real-time pressure and flow curves are displayed and recorded for every shot, giving baristas the kind of extraction visibility that was previously only accessible to competition-level setups. Temperature for both boilers, volumetric targets, flow profiling curves, and pressure profiling modes are all configured and saved through the app. Each saved profile can be linked to a specific grinder setting — including Wendougee's own MILO-II grinder — and to a connected scale such as the BOOKOO Themis Mini, enabling weight-based automatic shot stopping from within a fully integrated smart ecosystem. Profiles can be shared with and downloaded from the Wendougee community globally, turning the E-Bar platform into a living recipe library that grows with every user.

Material Quality — Built to Outlast

A machine of this specification demands internal components that match its ambition. The Data S delivers. The water distribution block and flow manifold are milled stainless steel. All hot water lines are copper. The pressurised water path from pump to distribution block uses PTFE tubing. The brew group is stainless steel. The boilers are stainless steel. The steam boiler manometer is sourced from WIKA Germany. The only plastic in the water path is the tank itself and the silicone inlet line — a specification more honest and more metal-dominant than machines that cost significantly more. External bodywork is full stainless steel, built to absorb the daily demands of serious use and age with integrity.

Flexibility — Tank or Direct Plumb

The Data S is available in both water tank and direct plumb configurations, giving buyers the choice between a self-contained desktop setup using the 1.5-litre internal reservoir, or a permanent plumbed-in installation for uninterrupted service. The machine's footprint accommodates two foot position options, providing counter placement flexibility across different kitchen or bar setups.

What's Included

Every Data S ships with a wooden bottomless portafilter handle, 22g and 18g Wendougee competition baskets, a backflushing disc, and a tablet/iPad stand — giving the buyer everything needed to begin extracting at a professional level immediately out of the crate.