High-end specialty coffee equipment maker Weber Workshops has unveiled a top-to-bottom internal redesign of its flagship single-dose electric grinder, the EG-1.

While maintaining the overall aesthetic, footprint and core platform of 80-millimeter flat burrs with variable RPM control, the redesigned commercial grinder introduces changes to the motor, grinding chamber, exit chute, base and bean-feeding system.

An optional Bean Feeder magnetically attaches to the new model to provide a slower, controlled flow of coffee into the burrs that adjusts in proportion to the user-designated RPM of the machine’s redesigned motor. 

The new EG-1 motor provides 22% more torque, according to the company, alongside an auto-stop function and a patent-pending purging feature called Vibe Tone. Following grinding, motor-generated oscillations help dislodge coffee retained between the burr teeth.

Users can adjust the frequency and tone of the Vibe Tone oscillations through the EG-1’s browser-based control interface. A USB-C port supports grinder settings and firmware updates.

“Since this is a brand-new technology in grinders, we found that certain tones were slightly more effective, but it depends on the characteristics of the powder — how fine, roast level, et cetera,” Weber Workshops Founder and CEO Douglas Weber told Daily Coffee News. “This is very similar to how a single RPM is not optimal for all bean types and roast levels. We’re looking forward to seeing how people use and optimize this for themselves.”

Additional bearings, tighter manufacturing tolerances and the grinder’s redesigned internal architecture contribute to what Weber Workshops calls “Intrinsic Alignment,” which Douglas Weber said will “make the whole burr alignment conversation a moot point on the new version.”

An ion generator built into the coffee exit path is designed to neutralize static as grounds leave the burr chamber. The main power inlet can also swivel between rear-facing and downward-facing positions, allowing the cord to run across the counter or through a hole in the work surface, accommodating different bar setups. 

“Some ideas have been in development since the beginning of the EG-1 program over a decade ago, but the majority of these [new features] have been over the past two to three years,” Weber said. The company is also moving away from numbered EG-1 versions for future upgrades.

Weber Workshops launched the original EG-1 grinder in 2015 in an era when single-dose grinders were largely considered a niche domain of home coffee enthusiasts.

Built for commercial single-dosing from the beginning, the EG-1 was followed by the EG-1 V2 in 2019 and then the EG-1 V3 in 2022. Over that period, the high-end single-dose grinder market expanded to include products from established equipment brands such as Compak, Mazzer, Ceado and Eureka, alongside specialist brands including Molar, Option-O and Versalab.

Once again simply called the EG-1, the redesigned machine’s new hardware is not backward-compatible with previous generations. Weber Workshops said it will continue supporting previous EG-1 editions with service and replacement parts indefinitely. The new EG-1 is on sale through the Weber Workshops website starting at $4,450, with the company saying shipments will begin in the coming weeks. 

“The original EG-1 helped create the commercial-grade single-dosing category more than a decade ago. Since then we’ve learned an enormous amount about alignment, retention, static, motor control, feeding and workflow, and this machine brings all of that together,” Weber stated in a press release published last week. “For single dosing, this is our endgame grinder. We want people to buy it, use it, maintain it, and stop wondering what version comes next. There is no v4. There is the EG-1.”

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