The simplest of the Expobar Office line, the Pulser carves out a space all its own with its unique aesthetics. As a medium capacity heat-exchange machine, it can brew and steam simultaneously, making it ideal for crafting cappuccinos and lattes at home or in a coffee kiosk. We’re particularly impressed with Expobar’s barista-focused construction, as seen in the fully articulating steam and hot water wands; temperature retaining chrome plated brass portafilter; and especially in their reimagined E61 group head. A traditional E61 syphons hot water through the brew circuit to ensure the brew water always retains its temperature, and Expobar’s adds to that by integrating a concave pre-infusion chamber to soak the grounds prior to brewing and aid in the extraction. Due to these features, we’ve noted impressive temperature stability while brewing with the Pulser.
Using the Pulser couldn’t be simpler. Cups are conveniently stored atop the machine on the passively heated cup warmer; the on/off switch is front and center, situated between the steam and hot water knobs; and an imbedded temperature-ready indicator light burns bright to cue you when it’s ready to brew. It’s powerful, yet compact enough to fit under a standard 16” cabinet, making the Pulser an excellent fit for baristas at home or work. Internally, the machine sports electronic boiler controls, safety switches and commercial quality components. Also part of Expobar’s Office Line are the Control, which offers programmable volumetric brewing at the press of a button, and the Office Lever, which offers larger capacities and all over stainless construction, as well as an option to plumb the machine into a water line with the Office Lever Plus model.
Redesigned E-61 Group Head
A standard E-61 group constantly syphons water from the boiler to the group and back, but Expobar raised the bar by adding a pre-infusion chamber. This innovative addition evenly distributes hot water over the grounds for a uniform saturation during pre-infusion and throughout the brewing process.
The Pulser’s 1.8 L heat-exchanger boiler has an internal chamber that houses the brew water, while the steam is cordoned to the surrounding chamber, preventing them from coming into contact. This design pre-heats the brew water and allows for simultaneous brewing and steaming at all times.
Manually Adjustable Brew Pressure
For the explorative baristas, the Pulser offers the ability to easily change its brew pressure by adjusting the OPV, or over pressure valve. This allows the user to experiment with various brew pressures on the hunt for that elusive perfect shot.
ESE Pod Compatible
With the additional ESE pod kit, the Pulsar can brew espresso using pre-ground coffee pods. This flexibility is perfect for a multi-user home or office setting, where skill levels might vary, because everyone deserves a delicious espresso regardless of barista status.