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Product highlights
Brew boiler and Steam boiler
Quiet and Precise Pressure
Wendougee E-Bar
plumbable
Grinder and Scale
The Wendougee DATA S Espresso Machine is not just another espresso machine. In fact, it is designed for people who value ritual, control, and the satisfaction of pulling a meaningful shot.
It features a dual-boiler design, a saturated 316L stainless steel group head, and a quiet gear pump. Additionally, it offers app-based pressure and flow control. As a result, it delivers a more thoughtful espresso experience at home.
The Wendougee DATA S Espresso Machine balances instinct and precision. For example, you can keep things simple or fine-tune every shot using the E-bar app. Moreover, you can save your favorite profiles and reuse them anytime.
Furthermore, it uses Italian GICAR Flow meter, German WIKA Pressure Sensor and WIKA Pressure Gauge all high-quality commercial grade components.
It also integrates with compatible grinders like the Wendougee MILO and ARES. Furthermore, it connects with scales such as BooKoo scales. Consequently, this enables brew-by-weight functionality and real-time data tracking.
The result is a smoother, more personal workflow that makes every coffee session more satisfying.
It is built for people who care about the cup, but also care about how the moment feels.
Indeed, it is the kind of machine that makes you slow down. Moreover, it invites you to pay attention and enjoy the process as much as the espresso itself.
For home baristas who have outgrown "good enough," the DATA S offers a more expressive way to brew. Ultimately, it delivers precision when you want control and convenience when you need simplicity. Thus, it brings café-level espresso into everyday life.
Marko at Bella Barista calls the DATA S the "Mockingbird machine." That's because it can replicate virtually any espresso profile from other machines.
For instance, you can import shot parameters from machines like the Decent DE1 or Slayer. You can also import them from the La Marzocco Linea Mini or Profitec Pro 800. Then, you can run them on the DATA S.
The DATA S is built around two independent boilers, one dedicated to brewing, one to steam, each managed by its own PID controller. That separation means brew temperature holds precisely where you set it, shot after shot, while steam pressure stays ready the moment you need it. The result is the kind of thermal consistency that turns great espresso into repeatable every day espresso.
A commercial gear pump — the same class of pump found in professional bar machines — gives the DATA S smooth, linear command over pressure from pre-infusion all the way through the tail of the shot. Where vibratory pumps deliver a fixed, blunt push, the gear pump lets you shape each extraction: a soft bloom to open the bed, a peak pressure window to develop body and sweetness, a controlled taper to keep bitterness in check. That range of expression is what pressure profiling is actually for.
The group head on the DATA S is fully saturated — constantly bathed in boiler water — so it reaches and holds brew temperature with minimal drift between shots. The 316L stainless steel construction resists corrosion and retains heat evenly, keeping the thermal environment around the puck stable even during back-to-back extractions.
The DATA S connects to the Wendougee E-Bar app via Bluetooth, giving you a profile library, live pressure and flow curves, and integration with compatible grinders and scales. You can dial in a recipe once, save it, and recall it exactly, or use the data to understand why a shot tasted the way it did and adjust accordingly. The machine works without the app, the app just makes it work better and give full control.
The DATA S supports both reservoir and direct water line connections, so it fits the practical reality of your kitchen, whether that means a countertop tank setup or a dedicated water line in a future renovation. Switching between the two requires no compromise on performance.
Pairs well with
In stock! Ships within 1-2 business days.
14-day cool-off period
2-Year Warranty
Insured Shipping
Product highlights
Brew boiler and Steam boiler
Quiet and Precise Pressure
Wendougee E-Bar
plumbable
Grinder and Scale
Wendougee DATA S Espresso Machine
The brew boiler is 0.8L Saturated group head made of 316L stainless steel, Extreme temperatures stability
– Dual boiler system (1.8L steam Boiler + 0.8L Brew Boiler) so you can steam milk and brew at the same time
– Independent control of both variables throughout the shot, not just one or the other
– Build custom multi-stage pressure and flow curves in the E-bar app and save them per coffee.
– Connects to the BOOKOO scales & Acaia scales(not available yet) to stop extraction automatically at your target yield.
– pairs with the Wendougee Milo and ARES grinder to sync grind size to each saved profile.
– Ready to pull a shot in around 10 minutes
– no, the exact volume of water went out of the group head, pre-program short for a specific amount of water per milliliter
– Semi-automatic dual boiler espresso machine
– 0.8 L stainless steel, saturated group design
– 1.8 L stainless steel, insulated
– Saturated group head (316L stainless steel)
– Wendougee proprietary gear pump, self-priming
– 12 ml/sec controlled with needle valve.
– Yes — dual PID, independent per boiler
– Yes — programmable via Wendougee E-bar app
– Yes — Flow Priority mode
– Yes — programmable low-pressure phase
– 58 mm bottomless, wooden handle
– 1.5 L removable.
– Yes — kit included.
– 220–240 V, 50 Hz / 2800 W.
– 290 × 490 × 370 mm
– 25 kg
– Full stainless steel
– E-bar app (iOS / Android), OTA firmware updates
– Wendougee MILO II, Wendougee MILO Play grinder, Wendougee ARES Grinder, BOOKOO Themis Mini scale, BOOKOO Themis Ultra scale, Acaia Lunar Scale
We guarantee the quality and performance of our espresso machines. Every purchase includes:
Included in the Box
iPad/iPhone stand
22g and 18g Filter Basket
Wooden Bottomless Portafilter
Plumb-in kit
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Group Head
The brew boiler on the Wendougee DATA S is 0.8L Saturated group head made of 316L stainless steel, the same design commercial La Marzocco machines use. Because the group is part of the boiler rather than heated through it, there's no cooling flush before the first shot, and brew temperature stays steady from shot to shot.
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Dual boiler
The DATA S Has a 1.8 L steam boiler made of 316L stainless steel, the same corrosion-resistant grade as the saturated group. It climbs past 2 bar of pressure and reaches water temperatures of 140 °C, steam performance usually reserved for commercial machines. Incoming cold water passes through the steam boiler and pre-heat the water before it reaches the brew Boiler, so the brew boiler does not drop due to the cold water, which is give the Wendougee DATA S, extreme thermal stability.
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Gear Pump
Where rotary pumps push water at a roughly fixed pressure and the vibratory bump are loud and not accurate, a gear pump uses interlocking gears running at variable speeds. The Wendougee DATA S adjusts pump speed hundreds of times per second, following whatever pressure or flow curve you've programmed. It also runs quieter, an even hum rather than the classic vibratory buzz, and produces smoother transitions between curve stages while maintaining extreme accuracy.
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Flow Meter
The GICAR flow meter in the Wendougee DATA S sits inline with the group and counts every millilitre of water that passes through it. That real-time data feeds the E-bar app as you pull, showing you exactly how much liquid has left the group head and how fast it's flowing. Set a target volume per profile and the DATA S cuts the shot automatically when it hits the number, no scale required for a repeatable yield.
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Pressure Sensor
WIKA is the sensor most commercial espresso machine builders reach for when they need readings they can trust. On the Wendougee DATA S it sits inline with the group and feeds live pressure data back to the E-bar app every few milliseconds, and the pump correct itself mid-shot. hence the choice of a brand with a 75-year track record in industrial instrumentation.
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Pressure Gauge
The analog WIKA gauge on the front panel reads steam boiler pressure directly, useful for knowing at a glance whether the machine is ready to steam milk. It's the same WIKA brand as the brew-side pressure sensor, so you're looking at one sensor family across the machine rather than a mix of bargain parts. Glance-readable, no app needed for this one.
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App Controled
Build a profile curve in the Wendougee E-bar app on IOS or Android Wendougee DATA S, pre-infusion ramp, pressure plateau, declining tail, whatever the coffee wants. Save the profile under the bean it's dialled for. The app shows live pressure, flow, and temperature graphs as the shot pulls, so you can see exactly where your curve tracked and where it missed. Share finished profiles to the community tab, pull other people's down, tweak them to your water and grinder. Firmware updates arrive over-the-air.
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Tactile Interaction
The paddle on the front of the Wendougee DATA S is the trigger for whichever profile you've loaded in the E-bar app, push it, the shot runs the curve you programmed. push it again, and the shot stops. It's a physical, tactile control in a world of glass touchscreens, and it keeps your phone out of the drip tray.
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Bluetooth Connectivity
The Wendougee DATA S talks to BOOKOO Themis Mini, BOOKOO Themis Ultra, and Acaia Lunar(not supported yet) scales over Bluetooth and cuts the shot automatically at your target weight, no watching the scale, no reaching for the paddle. It also pairs with Wendougee MILO Play, MILO II, and ARES grinders so grind size syncs to each saved profile. Change bean, change profile, grinder adjusts. Less dial-in, more drinking.
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Robust Construction
Full stainless-steel body, copper pipework inside, and 25 kg of weight on the counter. The chassis is built to the same mechanical standard you'd see on a commercial machine, scaled to fit a 29 cm wide footprint. Lift the lid and you can see it, thick-walled boilers, clean routing, no flimsy plastic where metal ought to be. Open the side panels and the inside is as serviceable as the outside is clean.
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Needle valve
A small access hole on the top of the machine sits directly above the needle valve. Open it with a flat-head screwdriver to raise or lower the maximum flow rate the group can push through the puck. The factory setting is 12 ml per second, which suits most workflows, drop it for slower pours on lighter roasts, leave it alone for everyday espresso. It's hardware control over a limit that most machines hide behind software.
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Steam Wand
The 1.8 L insulated steam boiler drives a cool-touch wand with a four-hole tip. One pull textures a 500 ml jug, enough for two flat whites, without the boiler needing to catch its breath. Grab the wand a few seconds after you cut the steam and it's still cool in your hand, which is what you want when you're three drinks deep and not slowing down. The four-hole tip also runs a wider, more stable swirl than the two- or three-hole tips you find on most home machines, so you get tighter microfoam faster, especially with oat, which is notoriously fussy on narrow tips.
There's a particular quiet to the morning when you're the first one awake. The grinder hums. Steam rises before the city does.
This is the hour the home barista lives for. A new bean. A finer grind. A profile someone shared at midnight. You pull the shot, you taste, you note, you wait for tomorrow.
The setup matters. The Wendougee DATA S sits on the counter like sculpture , matte painted stainless steel, a walnut wood paddle for the amazing tactile feeling under your hand, pressure you can profile and flow you can control. The technology lives inside the app.
Guests always notice. The conversation starts there, and always finds its way back to the coffee in the cup.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
Shipping Information
We ship the DATA S fully insured across the EU and EEA. Handling takes 1–2 business days; transit is 2–7 business days depending on destination. Tracking details arrive by email the moment your machine leaves the warehouse.
Customer Support
Questions about dial-in, E-bar app setup, plumbing the machine into a water line, or anything else DATA S-related — we reply within 24 hours on weekdays. just drop a message in the chat or WhatsApp during business hours.
FAQ’s
Scroll down to the FAQ section on this page for answers on shipping, grinder pairing, plumb-in, maintenance, heat-up time, and how the DATA S compares to the Decent DE1 and the Wendougee LITA. If your question isn't covered, the contact form at the bottom of the page reaches us directly.
Contact Us
Email info@vellutto.eu, WhatsApp, or use the Contact form further down this page. We usually reply within few hours or within 24 hours on weekend.
all prosumer espresso machines are variations on the same theme for the most part: the E61 group, vibratory pump, basic PID. Wendougee wanted to tackle these issues from a different approach. And they started with choosing commercial grade component. The pressure sensor is a German WIKA. The flow meter is an Italian GICAR. The group is a saturated made of 316L stainless steel, and they went with commercial grade gear pump. On top of that hardware sits the E-Bar a control layer that lets you draw and design the pressure and flow profile curves you want, shot by shot.
It's closer to a lab instrument than to anything you'd call a home appliance, and the rest of this page is the parts list that earns the comparison.
Most espresso machines hide their internals for a reason, they're not always pretty. The DATA S is the opposite. Press play and watch it come together piece by piece, and you'll see why the people who own this machine talk about its build the way other people talk about watches. Clean routing, honest materials, parts you can name. It's the kind of inside that earns the outside.
The Wendougee Data-S keeps a clean, minimalist design, made to feel at home in any kitchen. It comes in three timeless finishes (Black, Grey, or White) so you can choose the one that best fits your space, whether it’s modern and sharp or warm and relaxed.
Every detail feels considered, from the top for cups warmer to the tray. Nothing is there just for show, it all designed and exist for a purpose.
It’s not only a capable machine on the inside, but also a quiet focal point in your coffee corner. One you’ll actually want to keep on display.
WPM ZP1 64mm Single Dose Grinder
Buy More And Save More
Buy grinder with your espresso machine and save €100
Please read our FAQs page to find out more.
Yes. Vellutto ships the Wendougee DATA S across the EU and EEA with insured carriers. Handling is 1–2 business days, transit 2–7 business days depending on destination.
To set up your Wendougee DATA S for the first time, follow these steps to ensure both boilers are properly filled before activating the heating elements:
Important Water Quality Recommendation
Always use filtered water in your Wendougee DATA S espresso machine. Hard water can cause scale buildup inside the boilers and hydraulic system, which is one of the most common causes of performance issues and costly repairs. Using properly filtered water helps protect your machine, maintain brewing performance, and extend its lifespan.
Both machines come from Wendougee's prosumer range, but they're aimed at pretty different users.
The DATA S is the serious one. Dual boiler, gear pump, and full pressure and flow profiling through the Wendougee E-bar app. The 1.8L steam boiler handles milk steaming without breaking a sweat — useful if you're pulling back-to-back drinks or working with larger jugs. The gear pump matters too: profiling curves come out smoother and more repeatable than anything a vibration pump can do, so if you're dialling in specific extraction shapes, this is the one. You can also plumb it straight into a filtered water line, which means no tank to refill.
The LITA is smaller, lighter, and more affordable. It uses dual vibration pumps and a 0.8L steam boiler — fine for one or two drinks at a time, but it'll run out of steam faster and isn't as thermally stable under load. What it does have that the DATA S doesn't: an onboard display and a control disc right on the group head, so you can tweak settings without pulling out your phone. It's also much kinder to a small kitchen counter.
Pick the DATA S for steam power, gear-pump profiling precision, and direct water plumbing. Pick the LITA if budget, footprint, or built-in on-machine controls matter more than raw capability.
No — the DATA S works with any grinder. That said, pairing it with a Wendougee grinder unlocks extra features through the E-bar app:
Max flow rate is the upper limit on how much water the group can push through the puck per second. On the DATA S it's set by a needle valve under a small access hole on top of the machine. Open the valve with a flat-head screwdriver to raise the limit, close it to drop it. Factory setting is 12 ml per second, which suits most workflows.
No — gear pumps are noticeably quieter than vibration pumps, much closer to a rotary pump in sound. You get a smooth, even hum rather than the buzzy rattle a vibratory pump makes.
Most DATA S owners say the steam wand and the grinder are louder than the pump itself. Pulling an early shot won't wake someone sleeping in the next room, which is a real problem with a lot of vibration-pump machines.
Yes. A plumb-in kit is included in the box — nothing extra to buy. Switching between the 1.5L internal reservoir and a direct water line is done from underneath the machine and doesn't require any additional parts.
Just make sure the machine is connected to a filtered water supply. Unfiltered tap water will cause limescale to build up inside the boilers and can seriously damage the machine over time.
The nickname comes from Marko at Bella Barista. The idea: the DATA S can replicate virtually any espresso profile from any other machine. Take the shot parameters off a Decent DE1, a Slayer, a La Marzocco, a Profitec Pro 800, or even a lever machine, build the equivalent curve in the E-bar app, and run it on the DATA S.
Both machines handle pressure profiling and flow control, but they get there through completely different engineering.
The DATA S is built around traditional boilers with accurate temperature probes, so thermal stability comes from sheer thermal mass. It runs a gear pump, which is quieter and better built than the vibration pumps most machines use. And because it's a true dual boiler, you can pull a shot and steam milk at the same time.
The Decent DE1 uses thermoblock technology instead — water is heated rapidly on demand, right before it hits the group head. It runs two vibration pumps, one for cold water and one for hot. You can't brew and steam simultaneously on a DE1. What the Decent does give you that the DATA S doesn't: temperature profiling through the shot, adjusting the brew temperature mid-pull.
So it comes down to what you care about: dual-boiler thermal feel, simultaneous brew and steam, and a quiet gear pump point toward the DATA S. Mid-shot temperature control points toward the Decent.
Flow profiling controls the amount of water per second rather than the pressure. As the coffee puck changes resistance during extraction, the pressure will rise and fall to maintain a constant flow rate. This can lead to more even extractions. In flow mode, the gear pump adjusts its speed to maintain the set flow rate. The principle is similar to what the Decent DE1+ does.
Honestly, it depends on the coffee and what you're chasing in the cup.
Pressure profiling is the intuitive choice if you've used a lever machine — you think in pressure phases, and that's what the curves look like. Flow profiling is often easier to dial in, because the pump quietly corrects for small grind inconsistencies that would otherwise throw off a pressure-based shot.
About 10 minutes from cold to brew-ready, which is faster than most E61 machines. For best consistency, let it sit a couple of minutes longer after it hits temperature so the group head and portafilter fully stabilise before your first shot.
Yes. The Wendougee E-bar app includes a Community tab where users upload and download profiles, so beginners can pull up recipes from experienced baristas instead of dialling everything in from zero.
One thing to be realistic about: downloading a profile won't give you someone else's exact shot. Grinder, beans, water, and ambient conditions all push the result around, so a shared profile is a head start — you'll still need to tweak the grind and probably adjust a few parameters to make it sing on your setup.
Yes. The DATA S pairs with an external scale over Bluetooth and cuts the shot automatically when it reaches your target weight — no watching the scale and reaching for the paddle.
Supported scales right now:
The Wendougee E-bar app includes a maintenance program that tracks these intervals and pings you when something's due.
The full manual isn't publicly available yet, so for anything beyond basic upkeep, get in contact with us for more details.
Filtered water in the 15–60 ppm TDS range with balanced alkalinity works best — it extracts well and won't chew up the boilers.
If you're plumbing the DATA S in directly, you need a proper filtration system on the line. Unfiltered tap water will cause limescale buildup inside the boilers and eventually damage the machine.
Usually yes, but measure first. The machine's footprint:
Most standard under-cabinet clearances will accommodate it even with a tablet mounted, but check two things before committing: the depth (you need counter space for the full 50–52 cm plus room behind for hoses/plumbing) in case you wanna connect directly to the water supply with a filter and check the clearance in front for swinging the portafilter in and out.
Yes. The Wendougee E-bar app gets regular updates that add new features, and machine firmware is flashed through the same app — you don't need cables or a service visit.
Follow the manufacturer's instructions when an update runs. Don't unplug the machine or close the app partway through, or you risk bricking the firmware.
Most of the DATA S's features map directly to specific frustrations home baristas run into. Here's how it handles them:
Inconsistent shots. The gear pump holds pressure steadily with real-time feedback, so shot-to-shot variation drops and your profiles actually become reproducible instead of lucky.
Not enough control over extraction. Choose pressure profiling or flow profiling, adjust the pump in fine increments, and build whatever curve you want — pre-infusion ramps, pressure plateaus, declining tails. Every profile saves in the E-bar app and recalls with a tap.
The learning curve on manual machines. The E-bar app shows live pressure, flow, and temperature graphs while you pull, and lets you save what worked. Pair it with the MILO II grinder and Themis scale and you get a guided dial-in workflow that walks you through the process step by step.
Temperature swings. Two independent stainless-steel boilers, each with its own PID controller, handle brew and steam separately. Stability is on par with commercial machines.
Slow warm-up. About five minutes from cold to brew-ready — faster than most E61 machines in this category.
Loud, uneven pumps. The gear pump is much quieter than a vibration pump and gives smoother pressure transitions. In sound and feel, it's closer to a rotary.
Grinder and scale integration that doesn't really exist on most machines. Paired with the MILO II and the Themis, grind size syncs to each profile and the shot stops automatically at your target weight.
No way to learn from other baristas. The E-bar app has a community feed for uploading and downloading extraction curves. Starting from a proven profile is a lot friendlier than building from zero.
Cleaning. Programmable cleaning cycles, a three-way valve that makes backflushing simple, and a front-access drain on the steam boiler for routine maintenance.
Footprint. 29 cm wide, 50 cm deep — narrower than most commercial-style dual boilers, so it fits on a normal kitchen counter instead of taking it over.
What the DATA S unlocks beyond fixing those problems:
All three are dual-boiler prosumer machines in roughly the same price tier, but they solve different problems.
The Lelit Bianca is E61-based with a manual flow-control paddle. You shape the shot by hand, in real time, every pull. It's the enthusiast's dream if you want to feel the shot, but there's no programmable profile, no app, no repeatability between shots unless your hand is very steady.
The ECM Synchronika is the traditional choice. E61, dual boiler, rotary pump, rock-solid build. No profiling at all, you get temperature and steam, and that's the pitch. If you want a machine that will outlive three apartments and never surprise you, this is it.
The Wendougee DATA S sits in a different category. Saturated 316L group instead of E61, gear pump instead of vibratory or rotary, and full pressure-and-flow profiling through the E-bar app with saved profiles per coffee. You design the curve once, run it from the paddle, and get the same shot every time. Scale-stop and grinder sync are built in.
Pick the Bianca if you want hands-on paddle control. Pick the Synchronika if you want a machine that never changes. Pick the DATA S if you want programmable, repeatable, software-driven shots with an ecosystem around it.
