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FAQ
Z1 Specs
User Manual
View the Z1 user manual here.
Motor & Electric
- 300W
- 100-120V & 220-240V
- 900RPM
Materials
- Machined aircraft grade aluminum
- Stainless steel
- Solid wood
- Built using food-grade and renewable source materials
Dimensions
- 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. We recommend hand-washing to maintain magnetic integrity.
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. We recommend hand-washing to maintain magnetic integrity
Z1 Features & Customization
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.
QA Testing
All Zerno products undergo rigorous QA testing throughout the manufacturing process with strict tolerances. Final QA is performed by our lead engineer at an arm’s length or less.
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
Set Screws
Set screws are used to help secure your blind burrs in the burr carrier. Versions of the Z1 delivered after May ’24 include an upgraded high-strength magnet in the carrier which eliminates the need to use set screws. In earlier versions, set screws are required on the stationary burr, and optional on the rotary burr. If your set screw get stripped or unable to remove, you may need to use a screw extractor. We recommend using an M4 or M5 screw extractor, findable at your local hardware store.
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.
Details:
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 info@zerno.co.
IMPORTANT: Refusing Package During Delivery
Our shipping partner will attempt to deliver 3 times before returning to Zerno HQ. If a package is returned to Zerno HQ as a result of package REFUSAL, the end customer is responsible for any shipping, brokerage, and VAT fees. This will be deducted from the customer’s refund after processing.
Warranty
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.
Returns
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 info@zerno.co. 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. Please see ‘important note about shipping’ section for more information.
Cancellation Policy
If you need to cancel your order, please email us at info@zerno.co. 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. Please see ‘important note about shipping’ section for more information.
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.
Newsletter
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 info@zerno.co and our team will respond within 24-48 hours.