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One commercial grinder built to move precisely between espresso, filter coffee and single-dose workflows.
The Mazzer ZM Plus is a professional low-retention grinder designed for specialty cafés, roasters and coffee programs that need exceptional control across multiple brewing methods.
With 83 mm flat burrs, electronic micrometric grind adjustment, True Zero calibration, up to 20 saved grind settings and a modular dispensing system, the ZM Plus allows baristas to move between espresso, filter coffee, single dosing and retail bag grinding from one professional platform.
Digital Micrometric Grind Adjustment
Instead of relying on an arbitrary numbered grind collar, the ZM Plus electronically controls the actual distance between the burrs in microns.
This makes grind settings easier to understand, record and reproduce when switching between coffees, recipes or brewing methods.
Electronic True Zero Calibration
Mazzer's True Zero system electronically calibrates the burr zero point, creating a repeatable reference for grind adjustment.
This is particularly useful in professional environments using multiple grinders, where repeatable settings can simplify recipe communication between baristas and locations.
83 mm Special-Steel Flat Burrs
The ZM Plus uses large 83 mm vertically mounted flat burrs designed and manufactured by Mazzer.
The ZM platform supports dedicated burr configurations for espresso, filter coffee and hybrid espresso-and-filter use, allowing the grinder to be configured around the needs of the coffee program.
Designed for Espresso & Filter Coffee
The ZM Plus is more than an espresso grinder. Its broad adjustment range and modular dispensing system make it suitable for espresso, pour-over, batch brew, filter coffee and retail coffee grinding when equipped with the appropriate burr configuration.
Low Retention for Single Dosing
Mazzer designed the ZM Plus around a short, efficient grind path with less than 0.5 g of retention after initial use.
That low retention makes it practical to switch between different coffees and origins while reducing carryover from the previous dose.
Save Up to 20 Grind Settings
The digital interface can store up to 20 named grind settings, allowing frequently used espresso, filter and retail grinding recipes to be recalled quickly.
Four programmable buttons provide rapid access to commonly used recipes or timed doses during service.
Grind Flow Control
Mazzer's Grind Flow Control system helps manage the flow of ground coffee through the chute while reducing static, clumping and coffee dust around the grinder.
The removable damper makes the system easier to clean and allows the grind flow to be adapted to the coffee and workflow.
Three Ways to Grind
The modular ZM Plus workflow lets the barista grind directly into a portafilter, into a removable canister or directly into a coffee bag.
The retractable portafilter holder provides hands-free espresso grinding, while the bag holder and quick-connect canister make the same grinder practical for filter coffee and retail coffee sales.
Double-Fan Cooling System
An electronically controlled double-fan cooling system helps manage operating temperature during demanding commercial use.
Combined with a relatively low burr speed of 1,080 rpm at 60 Hz, the system is designed to reduce unnecessary heat exposure during grinding.
Easy Access for Cleaning
The digital display pivots away from the grinding chamber, providing direct access for cleaning and burr replacement.
This design simplifies routine commercial maintenance without turning access to the burr chamber into a major service procedure.
Built in Venice, Italy
The ZM Plus combines Mazzer's commercial grinder heritage with modern electronic control, a die-cast aluminum body and professional components designed for demanding specialty coffee environments.
Key Features
- Commercial espresso and filter coffee grinder
- 83 mm special-steel flat burrs
- Digital micrometric grind adjustment
- Grind adjustment measured in microns
- Electronic True Zero calibration
- Less than 0.5 g retention after initial use
- Suitable for single-dose workflows
- Up to 20 saved grind settings
- Custom names for saved settings
- 4 programmable quick-recall buttons
- Adjustable timed grinding
- Grind Flow Control system
- Retractable portafilter holder
- Bag grinding capability
- Quick-connect ground coffee canister
- Double-fan cooling system
- Low-speed commercial grinding
- Pivoting display for easy burr access
- Double safety switch
- Die-cast aluminum body
- Made in Venice, Italy
Technical Specifications
- Brand: Mazzer
- Model: ZM Plus
- Product Type: Commercial Espresso & Filter Coffee Grinder
- Operation: Electronic / On Demand
- Grind Adjustment: Digital Micrometric
- Burr Type: Flat Special-Steel Burrs
- Burr Diameter: 83 mm
- Burr Speed: 900 rpm at 50 Hz / 1,080 rpm at 60 Hz
- Motor Power: 800 W
- Retention: Less Than 0.5 g After Initial Use
- Saved Grind Settings: Up to 20
- Programmable Quick-Recall Buttons: 4
- Cooling: Double-Fan Electronic Cooling System
- Standard Hopper Capacity: 320 g / 0.7 lb
- Optional Hopper Capacity: 1.3 kg / 2.9 lb
- Body: Die-Cast Aluminum
- Width: 245 mm / 9.6 in
- Depth: 430 mm / 16.9 in
- Height With Standard Hopper: 645 mm / 25.4 in
- Height With Optional 1.3 kg Hopper: 720 mm / 28.3 in
- Net Weight: 35 kg / 77 lb
- Country of Manufacture: Italy
Burr Configuration Guide
| Burr | Designed For |
|---|---|
| k151B | Espresso |
| k151F | Filter Coffee |
| k151G | Filter Coffee with reduced fines |
| k151I | Hybrid Espresso & Filter |
The installed burr set determines the grinder's intended performance range. Choose the configuration that best matches how the grinder will be used in your coffee program.
Three Professional Grinding Workflows
| Workflow | Best For |
|---|---|
| Portafilter Holder | Grinding directly into an espresso basket |
| Ground Coffee Canister | Single dosing, filter preparation and transferring ground coffee |
| Bag Holder | Grinding retail coffee directly into a coffee bag |
What's Included
- Mazzer ZM Plus grinder
- 320 g bean hopper
- Retractable portafilter holder
- Bag holder
- 2 ground coffee canisters
- Grind Flow Control system
Who Is the Mazzer ZM Plus For?
- Specialty coffee shops serving espresso and filter coffee
- Cafés rotating frequently between different coffees
- Roaster cafés selling whole bean and ground retail coffee
- Coffee bars that need repeatable grind settings
- Locations using single-dose workflows
- Multi-location coffee programs that want repeatable grinder calibration
- Cafés looking to consolidate multiple grinding tasks into one professional grinder
Care & Maintenance
- Brush the grinding chamber and chute regularly
- Remove accumulated coffee oils and particles from the burr area
- Keep the Grind Flow Control damper clean
- Clean the hopper and ground coffee canisters regularly
- Use an appropriate grinder-cleaning product when required
- Do not introduce water into the grinding chamber
- Inspect the burrs periodically for wear
- Follow Mazzer's recommended burr replacement and preventive maintenance schedule
Frequently Asked Questions
1. Is the Mazzer ZM Plus an espresso grinder?
Yes. The ZM Plus can be configured for espresso grinding and includes a retractable portafilter holder for grinding directly into an espresso basket.
2. Can the ZM Plus grind for filter coffee?
Yes. Mazzer designed the ZM Plus for both espresso and filter workflows. Filter-specific and hybrid burr configurations are available for different applications.
3. Can I use one ZM Plus for both espresso and filter?
Yes. The hybrid k151I burr configuration is specifically designed to support both espresso and filter coffee from the same grinder.
4. What size burrs does the ZM Plus use?
The grinder uses 83 mm special-steel flat burrs.
5. What is True Zero calibration?
True Zero electronically calibrates the point at which the burrs reach their zero reference, providing a repeatable starting point for grind adjustment.
6. Is the grind adjustment stepped or stepless?
The ZM Plus uses electronic micrometric adjustment controlled by a stepper motor, allowing the distance between the burrs to be set and displayed in microns.
7. How many grind settings can I save?
Up to 20 grind settings can be stored and given customized names.
8. What are the four buttons on the display for?
Four programmable buttons provide quick access to frequently used recipes or timed grinding settings.
9. Is the ZM Plus suitable for single dosing?
Yes. Mazzer specifies less than 0.5 g of retention after initial use, making the grinder particularly suitable for switching between different coffees.
10. How large is the standard bean hopper?
The standard hopper holds approximately 320 grams, or 0.7 lb, of whole coffee beans.
11. Is a larger hopper available?
Yes. Mazzer offers an optional 1.3 kg hopper.
12. Can I grind directly into a coffee bag?
Yes. A bag holder is included for retail coffee grinding.
13. Can I grind directly into a portafilter?
Yes. The retractable holder allows coffee to be ground directly into an espresso portafilter basket.
14. What does GFC mean?
GFC stands for Grind Flow Control. The system helps manage the flow of ground coffee through the chute while reducing static, clumping and coffee dust.
15. Does the ZM Plus have a cooling system?
Yes. The grinder uses an electronically controlled double-fan cooling system.
16. How fast do the burrs rotate?
Mazzer specifies 900 rpm at 50 Hz and 1,080 rpm at 60 Hz.
17. How much does the grinder weigh?
Mazzer specifies a net weight of approximately 35 kg, or 77 lb.
18. Is the grinder easy to clean?
The digital display can pivot away from the grinding chamber, providing easier access to the burrs and internal grinding area for routine cleaning and service.
19. How often should the burrs be replaced?
Burr life depends on coffee volume, roast style and operating conditions. Mazzer recommends monitoring burr wear and replacing the burr set as part of the grinder's preventive maintenance schedule.
20. Is the Mazzer ZM Plus intended for commercial use?
Yes. The ZM Plus is a professional commercial grinder designed for specialty cafés, roasters and other demanding coffee environments.
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