Overview
The 1Zpresso J-Max is the flagship of the J-series, featuring an innovative numbered external adjustment dial with 90 clicks per rotation for incredibly fine adjustment resolution. This makes it one of the most precisely adjustable hand grinders available, ideal for espresso where tiny grind changes significantly affect extraction. The same excellent 48mm burrs deliver outstanding uniformity, and the refined adjustment mechanism offers a satisfying tactile experience. The external dial also means adjustments can be made with one hand while holding the grinder with the other. For the serious espresso hand-grinder user, the J-Max delivers exceptional adjustability and grind quality.
The 1Zpresso J-Max features a 48mm conical burr set, crafted from steel. Grind retention is approximately 0.1g — virtually zero retention, making it excellent for single dosing.
At $199, the 1Zpresso J-Max is aimed at home baristas seeking a solid grinder without a premium price tag. Key workflow features include single-dose design (no hopper needed) and stepless grind adjustment for infinite precision. As a hand grinder, it's completely silent, portable, and gives you a meditative morning ritual.
The 1Zpresso J-Max is weighing 0.7 kg, manufactured in Taiwan. Its footprint measures 52 x 52 x 195 mm (W×D×H).
Full Specifications
| Brand | 1Zpresso |
|---|---|
| Model | 1Zpresso J-Max |
| Category | Hand Grinder |
| Country of Origin | Taiwan |
| Year Introduced | 2021 |
| Burr Size | 48 mm |
| Burr Material | Steel |
| Burr Type | 48mm conical |
| Retention | 0.1 g |
| Single Dose | Yes |
| Stepless Adjustment | Yes |
| Hopper Capacity | 35 g |
| Dimensions (W x D x H) | 52 x 52 x 195 mm |
| Weight | 0.7 kg (1.5 lbs) |
| MSRP | $199 |