December 2023 presale coming up! Presale opens on December 1st at 10am ct to email subscribers


Z1 Specs

User Manual

View the Z1 user manual here.

Motor & Electric

  • 300W
  • 100-120V & 220-240V
  • 900RPM


  • Machined aircraft grade aluminum
  • Stainless steel
  • Solid wood
  • Built using food-grade and renewable source materials


  • Height: 270mm | 10.6in
  • Length: 300mm | 11.8in
  • Width: 130mm | 5.1in
  • Weight: 6.5kg | 14.3lb

Grind Chamber

  • 64mm burr compatibility
  • 0 – 1400um grind range
  • 0.5g/sec – 2.5g/sec grind rate
  • Stepless adjustment

Z1 Innovations

Magnetically Aligned Blind Burrs

A first-of-its-kind innovation, our unique blind burr design increases burr surface area by almost 10% while making it easy to swap, clean, and maintain your burr sets. We work closely with world’s top manufacturers to maximize performance and interoperability.

Note: All of our grinders are also compatible with traditional burr sets

Control Feed Prebreaker

Our innovative variable feed prebreaker controls the rate and back pressure of beans entering the grind chamber, giving you more control to fine tune your grind. The prebreaker cracks the bean to create more surface area, tightening the grind profile and reducing excess fines and bitterness

Anti-Retention Chute

Aside from looking great, our chute is designed with function in mind featuring a magnetically removable body that makes for easy clean up while serving as a dual purpose knocker equipped with anti-retention technology that results in near-zero exchange.

Magnetic Dosing Cup

All grinders come with a magnetic dosing cup that self-aligns with the center of the chute to ensure a clean and precise workflow

Magnetic Portafilter Holder

Using a simple design with commercial-grade magnets, our portafilter holder secures your basket perfectly beneath your grinder chute for easy depositing of grounds to simplify your workflow.

Z1 Features & Customization


We designed the Z1 with interoperability in mind. Most of the components that make up the grinder are easy to maintain, upgrade or replace over time. 

  What’s Included

  • Z1 grinder
  • Cleaning brush
  • Ross Droplet Technique(RDT) spray bottle
  • Maintenance tools
  • Stainless steel magnetic dosing cup(for 58mm portafilter)
  • Stainless steel funnel
  • User-replaceable power cord
  • Front wood accent piece

Available Upgrades

  • Zerno branded Pelican-style hard case
  • Matching wood or stainless steel funnel cap
  • Aluminum magnetic portafilter holder

Purchasing & Logistics

Product Availability

While some of our products are available 24/7, our grinders are currently only available via our waitlist. To learn about upcoming opportunities to secure a Z1 grinder, join our email newsletter here.

Waitlist & Preorders

A note about our approach

Our approach is what makes Zerno different. Each grinder that we produce is made-to-order and assembled by hand in Chicago. This means that each grinder requires custom manufacturing and precision engineering and as a result, our lead times are longer. As stated by our community at large – The quality and craftsmanship of our products far outweigh the wait time.

Due to our unique approach and overwhelming demand, we introduced the waitlist to provide a fair and equitable way for our community to secure a Z1. Here are the details of our approach:

Date of Next Preorder Event: TBD
In general, we host preorder events 1x per quarter. Waitlist participants & newsletter subscribers will be notified via email. Lead times vary depending on your waitlist position, but a general rule of thumb is 6+ months after placing your preorder.

While you are on the waitlist
Waitlist participants gain exclusive access to any presale events, in addition to any grinders that become available from canceled orders. 

As you approach the #1 position
Our team will contact and invite you to place your preorder, during which you will build and configure your custom Z1. You will receive your assigned purchasing window along with estimated delivery date via email. 

Please note that payment is submitted at the time of placing your preorder. In order to produce a custom hand made grinder, we begin building your custom grinder with our manufacturing partners as soon as your preorder is placed.

If you miss our correspondence, or if the time isn’t right for you, your position will still be saved and we will reach out again ahead of the next production run.

After you place your preorder
You will receive regular updates via email throughout your grinder’s production cycle via email – These updates will keep you in the loop with the status of your grinder, inform you of any innovations that may be integrated into your Z1, along with the opportunity to make additional add-on purchases or updates to your order.

Note: Waitlist tickets are non-refundable and non-transferrable as a means of creating a fair and equitable way for our community to secure a Z1 in the quickest way possible.

Duties & Taxes

Import duties and taxes (including VAT) may apply for international shipments and are not included in the price. Fees vary by country, and Zerno encourages you to be aware of these potential costs before placing an order, as they are the responsibility of the customer. Currently we do not offer to prepay import taxes and duties.

Shipping Times

Shipping times vary depending on a country’s local shipping partner.

Domestic US shipping is completed via UPS and typically arrives within 3-5 business days.

International shipping typically arrives within 14-21 business days of dispatch, but often arrives within 5-7 business days. International orders are initiated via UPS and completed via local courier. We are actively expanding our global reach to include more countries. For questions about the countries we ship, please contact


All Zerno products come with a 1 year limited warranty that covers all manufacturing defects. We make exceptional products, and stand by their quality. If something goes wrong, our support team is on standby to troubleshoot and resolve every issue.


To initiate a return, submit a request within 7 days of receipt. The item must be returned to Zerno in all original packaging and in an unused condition. Requests should be made by email at Return shipping will be the responsibility of the customer and we recommend using an insured and trackable service. Refunds will include the full value of the goods returned minus shipping and processing fees.

Cancellation Policy
If you need to cancel your order, please email us at Orders may be canceled prior to dispatch and may be subject to a 3% fee. If your order has been dispatched, please refer to our return policy.

Transfer policy
Pre-orders are non-transferrable.

About Zerno

Our Story

We are a small team of engineers and designers operating out of mHub innovation labs in Chicago, Illinois. What started as a passion project by our Founder, Vel, has grown into a global effort to build an endgame grinder that meets the standards of the coffee community.


Our newsletter is the best way to stay in the loop with all things Zerno – By joining, you get early access during new product drops and developments. Join here

Contact Us

For support, partnership and press inquiries, please contact and our team will respond within 24-48 hours.