Fellow Stagg EKG Pro

**Build and Design**

The Fellow Stagg EKG Pro is a 0.9-liter electric gooseneck kettle built around a stainless-steel body and a distinctive flat, counterweighted handle that sits parallel to the countertop surface. The form is immediately recognizable: Fellow's design team positioned the handle low and the body high, distributing weight so that the filled kettle tips forward with minimal wrist effort — a meaningful ergonomic choice when you're executing a slow, controlled spiral pour over a V60 or Chemex. The gooseneck spout is narrow-bore and curves tightly forward from near the base of the body, a geometry that concentrates flow at the tip and allows the brewer to pour as little as a thin 2–3 gram-per-second thread or open up to a broader pulse without losing aim.

The Pro version distinguishes itself from the base Stagg EKG through its LCD screen mounted on the base, which displays both target and current temperature simultaneously. This is not a trivial feature: being able to read the actual water temperature in real time — rather than simply seeing a target setpoint — tells you exactly where you are in the heating or cooling curve, which matters when you're targeting a 93 °C bloom versus a 96 °C second pour. The base unit houses the PID controller, the heating element, and the Bluetooth radio that enables the Fellow app connection.

Finish options have varied across product generations, but the EKG line has historically been offered in matte black, polished steel, and seasonal colors — all choices that speak directly to Fellow's design-forward positioning. The kettle sits on a 360-degree swivel base, meaning it can be lifted in any orientation, a practical consideration for left-handed brewers or for those who set up their pour station at an angle.

**Temperature Performance and PID Control**

The core technical claim of the EKG Pro is degree-by-degree temperature control across its full range, enabled by a PID (proportional-integral-derivative) algorithm that continuously adjusts power to the heating element to converge on and hold the target setpoint. In practical terms, this means the kettle will hold water at, say, 85 °C for tea or 93 °C for a washed Ethiopian pour-over without the wide temperature swings (sometimes ±5–8 °C) seen in kettles that use simple on/off thermostats. The hold function keeps water at temperature for up to 60 minutes, which covers the full duration of most home brew sessions without requiring a manual reheat.

The scheduling feature — one of the markers that separates the Pro from the base EKG — allows the user to program the kettle to begin heating at a specific time via the Fellow app. For brewers with an early and consistent morning routine, this means water can be at temperature by the time the first dose is ground, eliminating the dead wait that plagues even experienced home baristas.

The 0.9-liter capacity is worth understanding in context. It is sufficient for a single 500 ml pour-over brew with water to spare for preheating the brewer and cup — roughly two full 250 ml mugs. It is not, however, a kitchen-party kettle. Brewers preparing multiple consecutive 1-liter batch brews, or households that brew for three or more people simultaneously, will need to run two cycles, which the hold function does mitigate in practice.

**Day-to-Day Workflow**

In a typical pour-over workflow, the EKG Pro integrates cleanly. Set temperature from the base dial before bed using scheduling, or dial in from the knob the moment you enter the kitchen. The LCD provides a live readout so you know when you're within 1–2 °C of target without hovering. The narrow gooseneck delivers a controllable stream from first drop: experienced brewers report the ability to maintain a consistent 4–5 gram-per-second flow during the bloom phase without the spout spitting or surging, which is a common failure mode of cheaper gooseneck designs.

The Fellow app (iOS and Android) extends control to scheduling, custom presets, and firmware updates. It is not required for basic operation — all core functions are accessible from the physical dial — but the scheduling and preset features add genuine utility for brewers who replicate specific recipes across multiple brew methods at different temperatures.

Maintenance is modest: the interior is stainless steel without any plastic contact surfaces near the heating element, which simplifies descaling. Fellow recommends a periodic descale cycle with a standard citric acid or white vinegar solution, no more frequently than monthly under typical hard-water conditions. The base and cord are non-immersible; otherwise the kettle body can be wiped clean externally. Replacement lids and bases are available through Fellow's parts program, a durability consideration worth noting at this price tier.