General presale starts on August 15 at 10AM CDT
Zerno
Zerno Z2 August 2025 (Est Dispatch Starts February 2026)
Zerno Z2 August 2025 (Est Dispatch Starts February 2026)
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Shipping begins in December 2025. Units are hand assembled in our Chicago facility in batches and delivered in the order purchases are received. Product may include minor design refinements.
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What's Included
- Lifetime membership to Zerno Sessions ongoing online classes
- Your Custom Zerno Z2
- Slow feed auger(pre-installed)
- Cleaning brush
- Ross Droplet Technique (RDT) spray bottle
- Maintenance tools
- Stainless steel magnetic dosing cup (fits 58mm portafilter)
- User replaceable power cord
- Front wood accent piece
- Funnel
The Zerno Z2 ships standard in a padded cardboard box with all included accessories.
The Zerno Pelican style hard case is available as an optional add on.
Form Meets Force
Designed for visionaries, built for the obsessive, the new Zerno Z2 80mm precision coffee grinder

Platform For Experimentation
Unlock Potential. Explore Every Flavor
The Z2 was designed for those who never stop tinkering—prosumers and professionals alike.
Supporting a wide range of 80mm burrs, it makes experimenting, swapping burrs, and holding your
grind settings effortless, all while maintaining flawless alignment—no shims needed.
Easily swap between two-hole and three-hole burrs—traditional or blind. With effortless access and a
system aligned by design, you can zero in on grind profiles for espresso, pour-over, and everything in
between.
Burr changes don’t reset your grind journey; they deepen it.

product specs
Platform Overview
Brewing Methods: Espresso and High Clarity Pour Over
Burr Size: 80mm
Burr Mounting: Blind and Traditional
Footprint: 13.4" x 5.1" x 12.3"
Components: Stainless Steel & Aircraft Grade Aluminum
Prebreaker: Slow Feed
Motor: 600W Brushless Servo
Voltage: 100 - 240VAC
Modes: Run and Purge
Rotation Speed: 800 - 2000RPM
Grind Range: 0 - 2000um
Grind Adjustment: Stepless and Front Facing
Hyperalignment: <15um alignment tolerance
Burr Choices
-
Core
Coffee Style: Espresso
Taste Profile: Medium Body With Some Flavor SeparationRoast Level: Light, Medium, Dark
Mounting: 3 Pin Blind
Coating: None
-
Ultra Low Fines (ULF)
Coffee Style: Pour Over
Taste Profile: Light-Bodied, High Clarity & Flavor SeparationRoast Level: Light & Medium
Mounting: 3 Pin Blind
Coating: Silver Knight
-
SSP Lab Sweet (LS)
Coffee Style: Espresso & Pour Over
Taste Profile: Medium Body With Some Flavor Separation, Higher SweetnessRoast Level: Light & Medium
Mounting: 3 Pin Blind
Coating: Red Speed
Brew With Purpose
Every Method. Every Profile.
From chocolatey, traditional espresso to bright, high-clarity pour-over, the Z2’s
80mm burrs provide a range and resolution previously only seen in commercial
cafés. Whether dialing in for competition or exploring the nuances of a rare single
origin, the Z2 delivers clarity, consistency, and control.

Auger Prebreaker System
Smoother Feeds. Fewer Fines.
Born from years of experience, the Z2’s all-stainless steel auger and grind chamber reduce retention while feeding beans with precision.
Redesigned from the Z1, the auger slows bean feed rate below burr speed, minimizing backpressure and fine generation for a cleaner, clearer cup.

Brushless Servo Motor
Precision You Can Hear(Or Can't)
The Z2’s heart is an industry-first, direct-drive 600W brushless AC servo motor—custom
developed by Zerno.
Operating across a universal 100–240VAC input, the motor maintains
constant torque and speed, delivering consistent grinds regardless of load.
-
600W of Power
Whisper Quiet Powerful Brushless Motor
-
<15um
Hyperaligned
-
800 - 2000 RPM
Variable RPM Grind Speed
-
Built For Silence
The motor’s driver operates above audible frequencies. What you hear isn’t noise—it’s
intention.The RPM knob glides on preloaded ball bearings with a smooth, deliberate
precision, its stainless steel finish offering a quiet confidence that endures. -
Engineered For Alignment
The Z2’s motor system is engineered for alignment longevity. Oversized, preloaded
German ball bearings ensure maximum spindle rigidity—rivaling commercial CNC-grade
systems. Swap burrs, deep clean, or adjust settings, and the Z2 remains perfectly aligned,
grind after grind.

All Stainless Steel Grinding Components
Built to Last. Engineered to Perform.
The entire grind mechanism in the Z2 is crafted from precision-machined stainless steel,
ensuring rigidity, longevity, and reliability.
This industrial-level build quality translates directly
into consistent results and reduced maintenance over time.

Precision Micron Dial
Luxurious Feel. Control Every Micron.
At the front of the Z2 sits the smoothest precision micron dial in the industry.
Built with an internal brass thread and mounted on a German ball bearing, the dial delivers feedback you can feel—precise, fluid, and tactile.
Setting the zero point is effortless, accurate, and repeatable. You’ll feel when the burrs touch—just like sensing road texture in a high-performance sports car. It’s feedback made physical, the interface between human and machine.
The Z2’s magnetic accent piece allows quick, tool-less access to the zeroing mechanism and creates opportunities for personalization.
Whether matched to a kitchen, café, or personal taste, it’s designed to adapt seamlessly—simple, functional, and made to look right at home in any setting.
-
Grind Modes
The Z2 features a military-grade European switch to activate two intuitive grind modes:
Standard and Purge. Purge mode rapidly evacuates any residual grounds before/after use,
eliminating exchange.
Every component, from switch selection to internal tolerances,
was tested and refined over dozens of iterations. -
Built In Knocker
A built-in knocker reaches deep into the grind chamber, clearing every last particle of coffee.
This attention to detail ensures minimal retention and maximum consistency—cup after
cup. It’s not just a feature. It’s peace of mind.

Grind range: 0-1400um
Burr size: 64mm
Burr mounting: Blind and Traditional
Adjustment type: Stepless
Weight: 6.5kg ~ 14.3lbs
Height: 287mm ~ 11.3” (including funnel)
Length: 307mm ~ 12.1”
Width: 130mm ~ 5.1″ (at the base)
Body Diameter: 84.25mm ~ 3.3”
Power: 300W
Input Voltage: 100-120VAC or 220-240VAC
Rotation Speed: 900RPM

Grind range: 0-2000um
Burr size: 80mm
Burr mounting: Blind and Traditional
Adjustment type: Stepless
Weight: 10.1kg ~ 22.3lbs
Height: 312mm ~ 12.3” (including funnel)
Length: 341mm ~ 13.42”
Width: 130mm ~ 5.1″ (at the base)
Body Diameter: 105mm ~ 4.1”
Power: 600W
Input Voltage: 100-240VAC
Rotation Speed: 800-2000RPM