With the acquisition of Xenia Espresso, Mahlkönig has added not just a new product, but an entire machine platform to its portfolio. The new Mahlkönig Xenia and the accompanying E64 WS Home grinder mark the company's entry into the home espresso segment – with a focus on precision and synchronization.
Learn more about synchronization between grinder and espresso machine in this article: Grind-by-Sync: Grinder and Machine in Dialog – Revolution or Expensive Toy?
The Machine: Mahlkönig Xenia Dual Boiler
The Xenia is based on the well-known dual boiler concept by Holger Dreißig. Technically, it remains a standalone system with thoughtfully designed details. Inside, two stainless steel boilers work together – one for brewing, one for steam. Both can be controlled independently of each other. Additionally, the machine features an actively heated brew group, allowing it to reach operating temperature significantly faster.
A three-point heating system ensures stable temperatures even during multiple consecutive shots. The Xenia is equipped with a proprietary brew group that promises precise electronic control combined with high energy efficiency.
Additional features such as programmable heating cycles, an espresso-only mode for energy saving, or individually adjustable pressure and flow profiles underscore the modern approach.
Starting at minute 27:46 we show the Xenia in the host video.
The Grinder: Mahlkönig E64 WS Home
Alongside the machine, Mahlkönig introduces the new E64 WS Home. It brings grind-by-weight technology with an accuracy of 0.1 g (manufacturer specification) to the home market for the first time – and for under 1,000 euros. At its core are 64 mm burrs, electronically controlled grind adjustment, and a load cell. The goal: reproducible results without manual readjustment.
The abbreviation WS stands for "Weight & Sync" – and points to the key innovation. In combination with the Xenia, a networked system emerges where grinder and machine communicate with each other.
Grind-by-Sync: Machine and Grinder in Dialog
With so-called Grind-by-Sync, the Xenia measures central parameters during extraction – such as flow rate, time, and extraction behavior – and sends this data to the grinder. If the extraction deviates from target values, the grinder automatically adjusts the grind size.
This marks Mahlkönig's entry into a new phase: the combination of grind-by-weight, electronic grind adjustment, and machine syncing is the technology of the moment in the home segment, though it has only worked on prototypes at two other manufacturers so far – namely Quick Mill in collaboration with Eureka and nunc.
Assessment
The combination of the Xenia as an open, sensor-based machine and the E64 WS Home as a precise, networked grinder forms a well-thought-out ecosystem. Whether the interplay actually works as smoothly in everyday use as the presentation promises remains to be seen. From a functional perspective, however, the package is a logical step – and a clear signal that the home market is increasingly moving toward integrated systems.
One more word on the assessment: as an espresso machine, the Xenia promises to be a significantly better match in terms of synchronization than the Quick Mill espresso machine in the Tio setup with the Eureka grinder. While in the Italian pairing the change to the next espresso shot is triggered by adjusting the grind size, the Xenia can theoretically also influence the shot during extraction if it measures a higher flow rate.
However, only a detailed test will show whether and how the control is intended here and how well the pairing functions. We're looking forward to it – and are curious to find out.
