Funnel Cup Magnetic Dosing Ring
Best dosing accessory for home baristas seeking a mess-free grinding workflow.
Revolutionize your coffee experience with the zeroHero® Funnel Cup Magnetic Dosing Ring, designed for seamless integration with your grinder for consistent, mess-free operation. This professional accessory features magnetic protection to prevent powder scattering during grinding, ensuring a clean workstation. An eight-point magnetic system guarantees enhanced stability, even when inverted. Precision is achieved through a 40° expanded opening that maximizes powder collection. Crafted from one-piece CNC-machined aerospace-grade aluminum, this dosing ring offers superior durability and is designed for quick cleaning with strong water flow. It is available in Grey and Silver.
$18.90
Owner Satisfaction
4.7
/ 5
Category Rank
22
/ 879
#22 in Coffee Grinder Accessories
Price vs Category Average
-74%
Below average
Size
58
/ mm
Who it's for
- Home baristas tired of cleaning up stray coffee grounds
- Users seeking a stable, hands-free grinding experience
- Espresso enthusiasts perfecting their puck preparation technique
Who should skip it
- Minimalists who prefer low-maintenance coffee tools
- Owners of multiple espresso machines with different basket sizes
- Workflow-focused baristas prioritizing maximum speed
Performance breakdown
Workflow Efficiency
Eliminates messy grounds and streamlines your daily espresso preparation routine.
Magnetic Stability
Eight-point contact ensures the funnel stays locked during heavy grinding.
Build Durability
Aerospace-grade aluminum construction feels virtually indestructible in the hand.
Dosing Precision
The wide funnel opening effectively captures every gram of ground coffee.
Maintenance Ease
Smooth, one-piece design rinses clean under the tap in seconds.
Compatibility
Standard 58mm sizing fits most professional-grade portafilters with ease.
Key Specs
Size
58mm
Material
Aerospace-grade aluminum, Magnetic
Weight
56g
Product Dimensions
18mm x 58.35mm
Color Options
Grey and Silver
Features
- Prevents coffee powder scattering during grinding.
- Eight-point magnetic system ensures secure attachment.
- 40° expanded opening maximizes powder collection area.
- One-piece CNC-machined aerospace-grade aluminum construction.
- Designed for quick cleaning with strong water flow.
- Enhances stability, even when the unit is inverted.
What customers say
Home baristas view the zeroHero Funnel Cup Magnetic Dosing Ring as an essential, high-value upgrade. The core praise centers on exceptional build quality and superior functionality. Users consistently celebrate the perfectly calibrated magnetic attachment, which provides a secure, unwavering lock onto the portafilter. This stability drastically improves workflow by eliminating mess and waste during grinding, leading to cleaner stations and more consistent dosing. While the initial cost is higher than generic alternatives, the consensus is that the premium feel, durability, and tangible enhancement to the daily espresso ritual fully justify the investment. It is celebrated as a significant quality of life improvement for the preparation routine.
Know before you buy
This dosing ring is designed with a 58mm diameter, making it compatible with most standard 58mm portafilters and grinders. We recommend verifying your portafilter size before purchase to ensure a proper fit.
The ring features an eight-point magnetic system that provides a very secure attachment. It is stable enough to remain in place even if the portafilter is accidentally inverted.
Yes, the 40° flared design creates a wider target area for coffee grounds. This significantly reduces the chance of grounds spilling over the edges of your basket during the grinding process.
No, the ring is crafted from aerospace-grade aluminum, which is highly durable and resistant to corrosion. It is designed to withstand daily use and can be easily cleaned with a quick rinse under water.
The magnets are integrated into the structure of the ring and do not come into direct contact with your coffee. They are positioned to provide a firm grip on the portafilter basket without affecting the quality or flow of the grounds.
Still have a question?
Ask Hayley anything about this product before you decide.