The Jay Grinder reflects La Marzocco’s approach to usability: thoughtful design that simplifies café workflow without compromise. 

During daily service, Coffee Supreme baristas found the Jay grinder intuitive and efficient, with a clear interface, predictable adjustments, and low retention supporting consistent dosing. The streamlined control system combines a minimal button interface with analogue grind adjustment, removing unnecessary complexity, allowing baristas to work quickly and confidently. 

Direct portafilter grinding integrates seamlessly into espresso preparation, reducing workflow friction and enabling baristas to focus on extraction and customer experience rather than equipment management. 

in the cup: balanced, sweet, expressive 

Trials at Coffee Supreme’s Melbourne café revealed immediate improvements in extraction performance and cup quality. 

“The quality of ground coffee was exceptional,” the team noted. “Channelling was reduced, shot times were more consistent, and the espresso flavour and texture were beautiful.” 

In the cup, espresso showed refined balance, expressive clarity, and clean flavour profiles, especially for single origins. Improved grind consistency and reduced retention translated directly into more stable extractions and a more reliable service rhythm. 

Grind texture was a standout feature. The team highlighted that “zero clumping was astonishing,” enabling more even distribution, better puck preparation, and ultimately more consistent results in every shot. 

designed with intention 

Coffee Supreme described the Jay as both visually striking and thoughtfully resolved. 

“The design aesthetically is beautiful,” they noted, with an interface that feels “super simple and clean.” 

Jay’s compact footprint integrates comfortably into modern bar layouts, while its visual language aligns naturally with La Marzocco machines. Beneath the surface, the Jay’s engineering reflects the same intent, from its 68mm flat burrs set at a 45-degree angle to minimise retention, to a grinding chamber designed with stainless steel contact surfaces that improves durability and preserves flavour integrity. 

engineered for ownership 

Serviceability emerged as one of the Jay’s defining strengths. 
The grinder’s magnetic burr carrier features blind burrs removing screw holes from the cutting surface. Mounted from the rear of the chassis ,this allows for fast, tool-free access, simplifying routine maintenance. This design eliminates unnecessary complexity, minimises retention, plus protects the integrity and efficiency of the 68mm flat burrs. 

Coffee Supreme described the grinder as “incredibly easy to pull apart and clean,” with daily maintenance becoming a natural part of workflow rather than a burden. 
“Everything was super simple to remove… daily cleaning doesn’t feel like a hassle,” the team noted, calling it “by far the best designed and engineered grinder for servicing.” 
By lowering the barrier to maintenance, the Jay supports long-term performance while giving café teams greater confidence in caring for their equipment.

a distinct identity 

For Coffee Supreme, the Jay’s strength lies in its ability to elevate both workflow and cup quality simultaneously. 

Reduced channelling, improved shot consistency, and clearer flavour profiles combine to deliver a more refined and repeatable espresso experience. At the same time, its intuitive operation and low retention design reduces waste and simplifies dial in. 

The result is a grinder that enhances performance without adding complexity, strengthening every stage of the espresso workflow, from calibration to service. 

Jay delivers performance, simplified. 

Coffee Supreme
28-36 Grosvenor St
Abbotsford VIC 3067
@coffee_supreme_melbourne