WPM ZP-1 Domus – 64mm Single-Dose Flat-Burr Grinder
Weigh the beans, pour them into the hopper, grind: the WPM ZP-1 Domus grinds every dose individually, with 64mm flat burrs from Italy and a fixed speed of 1300 RPM.
WPM describes the Domus as the slimmer sister of the ZP-1. It sits on the same platform with the same 64mm flat burrs, the same workflow and the same dimensions. WPM has simplified the motor design and left out speed control. It is made for everyday use at home and in small cafés.
Features of the WPM ZP-1 Domus
Stepless grind adjustment
The grinder takes up little space on the counter and covers a wide grind range. Stepless adjustment lets you fine-tune for different brew methods, from the finest grind for espresso to a coarse grind for French press.
64mm flat burrs from Italy
According to WPM, the Italian-made 64mm flat burrs produce a very even grind as the basis for a balanced extraction.
Simple workflow
The magnetically aligned dosing cup sits precisely under the spout and keeps the ground coffee clean. The chute knocker releases remaining grounds from the spout so the whole dose ends up in the cup.
Flat burrs usually render flavors clearly separated; with chocolatey and nutty beans they create a dense, round cup. Conical burrs like those in the KONOS render differently, neither better nor worse. Burr sets are like engines: subjective, there is no best one. Our opinion is one of many.
The details in everyday use
Quick cleaning
The parts are designed to come off easily. That keeps cleaning short and the grinder clean. A cleaning brush is included.
Very low retention
Little ground coffee stays in the grinder. You can switch beans and grind settings without flavors mixing and without purging first. An antistatic technology prevents clumping and makes for a more even grind.
Matte black aluminum housing
The housing is made of matte black aluminum. At 138 mm wide and 277 mm deep, the Domus fits on any coffee counter.
The fixed speed means fewer variables: grind size and dose are the two settings you adjust, everything else stays constant. We extract by weight: we grind fine, start at 14.5 g and work our way up, usually to 17 g, at a ratio below 1:2. Every shot is still unique, because the bean, the humidity and the person change every day.
At a glance
| Burrs |
64mm flat burrs, made in Italy |
| Grind range |
Stepless, espresso to French press |
| Speed |
1300 RPM, fixed |
| Hopper |
40 g capacity |
| Power |
150–170 W |
| Voltage |
220–240 V, 50–60 Hz |
| Dimensions (D × W × H) |
277 × 138 × 330 mm |
| Weight |
6.1 kg |
| Housing |
Aluminum, matte black |
| In the box |
Grinder, dosing cup (58 mm), cleaning brush |
| Sold separately |
SSP burr carrier, hopper lid |
Who the Domus is made for
The Domus is for anyone who wants single dosing in everyday life without setting a speed. If you switch beans often, the low retention works in your favor. If you are looking for a compact grinder in aluminum, you will find it here. Nobody needs it; if you want it, you know why.
If you want to choose the speed yourself, you will find the ZP-1 with 600–1300 RPM and the KONOS with conical burrs in our WPM Collection. For anyone who wants an electric grinder that is affordable and precise: the VS3 from Varia. If you want more room to play: the VS6 from Varia, the EG-1 from Weber Workshops or the Lagom from Option-O. You will find all models in our Coffee Grinders. Our grinder comparison gives an overview of single-dose grinders.
Our Consultation Tool helps you combine grinder and machine. You can book a free consultation appointment in the showroom, by phone or virtually. Online, Jackson, our AI advisor, helps you choose. In our Espresso Machine and Grinder Comparison, we show you machines and grinders in operation, side by side, in Bern or Zurich.
What goes with it
The dosing cup is 58 mm and fits machines with a 58mm portafilter, from single boilers to dual boilers in our Coffee Machines.
Scales: for anyone who wants a scale that is affordable and precise, the Normcore Collection. If you want an app, flow rate display and Bluetooth: the Acaia Collection.
Puck prep: for anyone who wants a tamper, WDT tool and puck screen that are affordable and precise, the tools from Normcore. If you want more from the materials: tamper, Moonraker and puck screen from the Weber Workshops Collection. Everything together in Barista Equipment.
Frequently Asked Questions
What is the difference between the WPM Domus and the ZP-1?
Both share the platform with 64mm flat burrs, stepless grind adjustment, a 40 g hopper and the same dimensions. The Domus grinds at a fixed speed of 1300 RPM with a simplified motor design, while the ZP-1 has adjustable speed from 600 to 1300 RPM. The ZP-1 comes with a hopper lid and an SSP-compatible burr carrier; for the Domus they are sold separately.
Can I grind for espresso and filter with the WPM Domus?
Yes. According to WPM, the stepless grind adjustment ranges from espresso to French press.
What comes in the box with the WPM Domus?
The grinder, a 58 mm dosing cup and a cleaning brush. The SSP burr carrier and hopper lid are sold separately.
How do I clean the WPM Domus?
According to WPM, the parts are designed to come off easily. The grinding chamber and burrs can be brushed out with the included brush. Thanks to the low retention, no purging is needed when you switch beans.
Can I see the WPM Domus before buying?
Our showrooms in Bern (Gerberngasse 44) and Zurich Oerlikon (Hagenholzstrasse 50b) show a wide selection, but not every model is set up at all times. Write to us at [email protected] before your visit, and we will check whether the Domus is on site.
How fast is the WPM Domus delivered?
Throughout Switzerland and to Liechtenstein in 2–5 business days. Click & Collect in Bern and Zurich. Financing available. We answer questions during business hours or via coffeecoachingclub.ch.
Roastery Tip: For espresso from the Domus we recommend Cozy Chocolate and Nutty Delight, both full-bodied with chocolate and nut. If you want maximum body without acidity, go for Very Nutty. For the curious, there is Wild Peach as a fruity discovery. Other beans work just as well. That is our recommendation, one of many.
