1Zpresso J-Max Manual Coffee Grinder

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  • 1Zpresso J-Max Front View
  • 1Zpresso J-Max Upper View
  • 1Zpresso J-Max View of Burrs and Grounds Catch
  • 1Zpresso J-Max Internal View

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  • What's in the Box

  • 1Zpresso J-Max Manual Coffee Grinder
  • Cleaning Brush
  • Cleaning Blower
  • Anti-Slip Rubber Band
  • 1Zpresso Cylinder Case
Front View of 1Zpresso J-Max

On The Rise

A relatively new company out of Taiwan, 1Zpresso has quickly made a name for themselves in the world of manual coffee grinders, producing almost a dozen different models since 2017. With several versions aimed at producing high-quality and uniform coffee grounds for every application, the J-Max may just be one of the most innovative espresso-focused hand grinders on the market. From the sleek, robust body, to its simple and intuitive grind adjustment, to a large, 48mm, titanium-coated burr set, the J-Max could just be the last hand grinder you'll ever need.

Grinding With the J-Max

Intuitive, Fast, Friendly

It's undeniably clear that when 1Zpresso was designing the J-Max, a simple approach to grinding espresso was at the top of the list. The top-mounted, external grind adjustment system completely eliminates the need to remove the ground catch to change your grind setting, as is seen in many manual coffee grinders. And while the J-Max is still a stepped grinder, it's about as close to a stepless system as possible. With each click on the grind adjustment only amounting to a particle size difference of 8.8 microns, or 0.0088 millimeters. Combine this with 48mm, titanium-coated steel burrs and an almost eight inch crank arm, and you're looking at a full dose of espresso smoothly ground in under 30 seconds.

J-Max Magnetic Grounds Catch

Form & Function

1Zpresso may have designed the J-Max as an espresso-oriented grinder, but that doesn't mean that other brewing methods have been left behind; in fact, it would be more than fair to call it an "all-around grinder". Due to its unique burr geometry, the J-Max offers sweet and balanced flavor notes when used with any brewing method all the way up to cold brew. 1Zpresso's burr geometry also lends itself to less static while grinding. For the home enthusiast, this means less retention from the J-Max, mitigating coffee waste. In order to make cleaning as simple as possible, 1Zpresso includes a dual-sided brush and an air blower to ensure that your J-Max runs as efficiently as ever and remains a daily driver for years to come.


    48mm Titanium-Coated Conical Burrs


    Wide Grinding Range


    Micro-Stepped Precision Adjustments


    Fast & Smooth Grinding Capabilities

More Features

Outer Grind Adjustment Ring

8.8µm Adjustment Per Click

Grind From Turkish to Cold Brew

Magnetic Grounds Catch Cup

Cleaning Utensils Included


Manufacturer: 1Zpresso
Model: J-Max
Burr Material: Titanium-Coated Steel
Burr Size: 48mm
Body Material: Aluminum With Silicone Leather Grip
Grinder Capacity: 35-40g
Dimensions: 7.7" (H) x 2" (D) x 6" (L)
Weight: 1.65 lbs

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