1ZPRESSO Grinder | J-Max (S)

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1ZPRESSO is a newer company out of Taiwan, founded by a group of coffee lovers with a shared background in engineering. In the words of 1ZPRESSO, 'we develop innovative manual coffee grinders with a passion for specialty coffee.'

1ZPRESSO grinders are designed for clarity of flavour notes for pour over or filter brews, while still being suitable for home espresso, aeropress, and french press brews.  

With their award winning design, 1ZPRESSO grinders all have an external adjustment ring and a new heptagonal 48mm stainless steel conical burr and dual-bearing shaft for stability and consistent grinds. 

All 1ZPRESSO grinders incorporate a quick disassembly design, which allows for quick and easy cleaning with no need for tools or recalibration. 

The J-Max is most suitable for pour over, filter and espresso brews with its 48mm Titanium-coated stainless steel burrs and unique adjustment-dial design. The J-Max has the finest adjustment mechanism of all 1ZPRESSO grinders. 

Equipped with an external adjustment dial for accessibility, the J-Max has 9 numbers and 90 clicks per rotation, with 8.8 microns each click for exceptional grind precision. This makes the grinder perfect for espresso. 

The J-Max has a curved handle level / ball knob for extra comfort. 

The J-Max grinder includes a cleaning brush, air blower, rubber grip band, and cylinder case.

Please refer to the 1ZPRESSO user manual before using. 


Grind Setting Reference

*Starting from 0*

1.5 rotations = turn clockwise 1 round and 4.5 numbers (135 clicks)

2.4 rotations = turn clockwise 2 rounds and 4 numbers (220 clicks)

3.3 rotations = turn clockwise 3 rounds and 3 numbers (300 clicks) 

4.3 rotations = turn clockwise 4 rounds and 3 numbers (390 clicks)

Never clean your grinder with water. The brush / air blower is the perfect and only tool you will need for cleaning. 

Please note. - J-Max (S) in iron grey only now comes with a foldable handle. 

Silver is still the standard straight handle. 


Collection Coffee
Use Manual Coffee Grinding
Material  Aluminum Alloy / Stainless Steel / Wood pommel
Burr  48mm Titanium-coated Stainless Steel
Capacity 35-40 grams max
Size  14cm X 18cm X 5.6cm
Weight  ~775 grams


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