使用說明書 – Q系列

1Zpresso – Q系列

Q2 grinder
Q2 grinder

操作說明

Q2 Grinder - Pentagonal Version
Q2 Grinder - Pentagonal Version

研磨度調節

  1. 凡內調式手磨原理都是先將刀盤鎖到底,再以退點方式來調節咖啡顆粒粗細。
  2. 操作前請裝上搖臂,固定中軸不動。
  3. 順時針轉調扣到底不動,圓點指向數字為歸零點,歸零點並非固定為0,可能是 0-9任一數字。
  4. 以歸零點為原點,逆時針轉調環,退一圈到歸零點即退一圈,以此類推。
  5. 本產品進退一圈內外刀距升降 0.75mm,一圈10大點/30小格有段調整,每大點為0.075mm,每小格為0.025mm。
  6. 歸零點可能因使用時間/拆裝次數/中軸螺紋磨合/內外刀盤間的殘粉等因素而有所不同。
  7. 各種沖煮建議請參考研磨建議卡。
  8. 放入咖啡豆順時針轉動搖臂開始磨豆。

日常保養步驟

Q2 grinder
  • 順時針(跟慣用轉鬆方向相反)轉出機殼,用毛刷或氣吹清潔內部即可。
  • 逆時針(跟慣用轉鬆方向相反)鎖緊機殼。

深度拆機步驟

Q2 grinder
  • 裝上搖臂,固定中軸不動,逆時針轉出調扣。
Q2 grinder
  • 依次取出刻度盤/內刀/彈簧/下軸承蓋。
Q2 grinder
  • 取下搖臂,抽出中軸。
  • 拆解完切匆水洗,可用毛刷或牙刷清潔。

深度組裝步驟

Q2 grinder
  • 中軸從頂部穿進機身,裝上搖臂。
Q2 grinder
  • 依次裝好下軸承蓋(凸面朝向軸承)/彈簧/內刀/刻度盤。
Q2 grinder
  • 握好搖臂不動,順時針轉調扣到底不動。

因需專用工具與精度調校,請匆自行拆解下列組件

Q2 grinder

外刀座組立

Q2 grinder

螺絲

Q2 grinder

軸承

注意事項

  • 本機裝配精密零件,嚴禁水洗
  • 手磨可清潔部位請勿使用水或酒精以外溶劑進行清潔
  • 刀盤雖為不銹鋼,但建議儲存於乾燥環境中
  • 拆機裝機的順序與步驟需按說明嚴格執行
  • 勿讓六歲以下兒童單獨操作本產品

User Manual – JX-Pro

1Zpresso – JX-Pro Grinder

JX-Pro manual coffee grinder
JX-Pro manual coffee grinder

User Instructions

JX-Pro grinder
Adjust the dial clockwise for finer grinds.
Adjust the dial counter-clockwise for coarser grinds.

Adjusting the grind setting

  • Turn the adjustment nut/adjustment dial clockwise to make the grinds finer and vice versa.
  1. Turn the adjustment dial clockwise to the tightest. The number (#) marked at the dot is the starting point/zero point.
    NOTE: the number (#) might not be 0; however, it is attainable if you like to calibrate to the #0. Check out here or the tutorial below.
  2. Turn the adjustment dial counter-clockwise from the zero point to the grind setting you like.
  3. There are 10 numbers/40 clicks in a single rotation. Every rotation moves the burr by 0.5mm.
  4. Refer to the grind setting tutorial post for several brewing methods.

Coffee Grinding

  1. Remove the handle and put coffee beans into the hopper. The maximum capacity is around 30g~35g.
  2. Grind coffee beans clockwise with the handle attached.
JX-Pro manual coffee grinder

Disassembly

JX-Pro manual coffee grinder
  • Loosen the adjustment dial counter-clockwise to remove it.
JX-Pro manual coffee grinder
  • Remove the adjustment dial. Loosen the knurled thumb nut counter-clockwise while pushing the burr from the bottom. Take out the top bearing cover, the top bearing and the sliding column/screw column.
JX-Pro manual coffee grinder
  • Take out the shaft, burr, lower bearing cover and spring.
JX-Pro manual coffee grinder
  • Turn the burr ring unit and the upper ring cap clockwise to remove them from the grinder.
  • Clean each of the parts with a brush and an air blower.

Assembly

JX-Pro manual coffee grinder
  • Turn the burr ring unit and the upper ring cap counter-clockwise to the tightest position. Be sure to do not overtighten and stop when you feel resistance.
JX-Pro manual coffee grinder
  • Put the components back in the right sequence: lower bearing cap (the raised edge side facing upward), spring, shaft and burr.
JX-Pro manual coffee grinder
  • There is a dot at the back of the sliding column. Place the sliding column (which connects the dot at the sliding column to the dot at the adjustment dial) inside the hopper.
JX-Pro manual coffee grinder
  • Put the components back in the right sequence while pressing the burr: sliding column, upper bearing, upper bearing cap (the concave edge of the cap facing upward).
JX-Pro manual coffee grinder
  • Turn the knurled thumb nut clockwise while pushing the burr.
  • Tighten the adjustment dial clockwise and stop when you feel resistance.

Warning:

Do not attempt to disassemble or remove the following components any further:
JX-Pro manual coffee grinder

The central shaft and the burr

JX-Pro manual coffee grinder

The burr ring unit and outer burr

JX-Pro manual coffee grinder

The bearings attached to the upper shaft hopper

Calibrating the Adjustment Dial

  • You would need to either loosing or tightening the knurled thumb nut or the adjustment dial to calibrate the grinder. 
  • The numbers on the dial are designed to count how many steps you’ve turned and therefore the starting point is not necessary to be at #0.
  • It is common for the starting point of the adjustment dial to be around two or more clicks away due to the strength of tightening the knurled thumb nut.

Instructions

JX-Pro manual coffee grinder
  • The grinder is well-calibrated if the dot is at #0 when the adjustment dial is in its tightest position.
JX-Pro manual coffee grinder
  • When the dot points to #1 instead of #0 at the tightest, please simply remove the adjustment dial (by twisting it counterclockwise).
    Adjust the knurled thumb nut counter-clockwise with 1 click.
  • Screw back the adjustment dial and the starting point should be at #0 (±2 clicks).

JX-Pro manual coffee grinder
  • It is the same as step 2, simply remove the adjustment dial (by twisting it counterclockwise).
    Except for the dot points now is at #2, so you need to adjust the knurled thumb nut counter-clockwise with 2 clicks.
  • Screw back the adjustment dial and the starting point should be at #0 (±2 clicks).

Precautions

  • Do not clean and wash the grinder with water.
  • Do not wipe your grinder with solvents other than water and alcohol.
  • Keep it in a dry environment in order to extend its lifetime.
  • Follow the instructions of re-assembly and ensure to place the components into the correct positions.
  • Keep the grinder away from children for safety concerns.

User Manual – E-Pro & Z-Pro Series

1Zpresso – E-Pro & Z-Pro SERIES

E-Pro & Z-Pro grinder
E-Pro & Z-Pro grinder

User Instructions

E-Pro & Z-Pro grinder

Adjusting the grind setting

  • Turn the adjustment dial clockwise to make the grinds finer and vice versa.
  • There are 6 numbers on the scale ring. Find the Red dot as shown in Fig A.
  • Adjust the scale ring clockwise to find your grind setting as the Red dot point at. The smaller numbers refer to finer grind, vice versa.

Grinding Degree Reference

Here is the recommend preference for each brewing method.

Brewing methodGrinding degreeExample
Turkish1.0~1.2Flour-like
Espresso1.5~2.5Salt-like
Siphon/Pour-over3.5~4.5Fine sugar-like
French Press4.5~5.5Granulated sugar-like

Coffee Grinding

  1. Put the coffee bean into the hopper after removing the handle.
    The maximum capacity is around 30g.
  2. Grind the coffee beans clockwise with the handle attached.
E-Pro & Z-Pro grinder

Precautions

  • Do not clean and wash the grinder with water.
  • Do not wipe your grinder with solvents other than water and alcohol.
  • Keep it in a dry environment in order to extend its lifetime.
  • Follow the instructions of re-assembly, ensure to place the components into the correct positions.
  • Keep the grinder away from children for safety concerns.

User Manual – E-Series

1Zpresso – E-SERIES

E-series grinder
E-series grinder

User Instructions

E-series grinder
Adjust the dial clockwise for finer grinds.
Adjust the dial counter-clockwise for coarser grinds.

Adjusting the grind setting

  • Turn the adjustment dial clockwise to make the grinds finer and vice versa.
  1. Install and hold the crank handle.
  2. Turn the graduated dial clockwise to the tightest with your fingers. The number (#) marked at the dot is the starting point/zero point. NOTE: the number (#) might not be 0, it could be at #0 to #11.
  3. Turn the graduated dial counter-clockwise from the zero points to the grind setting you like.
  4. There are 12 numbers, 24 clicks and 0.5mm in a single rotation.
  5. The starting point might be different due to the position of the graduated dial and the crank handle.
  6. Kindly refer to the grind setting tutorial post for several brewing methods.

Coffee Grinding

  1. Put the coffee bean into the hopper after removing the crank handle and the graduated dial. The maximum capacity is around 20g.
  2. Grind the coffee beans clockwise with the crank handle and the graduated dial attached.
E-series grinder

Basic Cleaning

Q2 grinder
  • The grinder is able to be unscrewed for cleaning the main parts. Grab the catch-cup with one hand and unscrew the body clockwise with the other hand.
  • Make sure there are no coffee grinds remaining on the threads; tighten the body counter-clockwise for assembly.

Deep Cleaning

E-series grinder
  • All 1Zpresso grinders are able to be disassembled without any tools. Install and well place the crank handle and the graduated dial with one hand. Loosen the graduated dial clockwise to remove the components.
E-series grinder
  • Remove the graduated dial. Loosen the thumb nut counter-clockwise while pushing the burr. Take off the top bearing cover.
E-series grinder
  • Take out the shaft, lower bearing cover and spring.
  • Clean each of the parts with a brush and an air blower.

Assemble

E-series grinder
  • Put the components back in the right sequence: lower bearing cap (the convex side facing upward), spring and burr.
E-series grinder
  • And then place the top bearing cover. Tighten the thumb nut clockwise while pushing the burr. Last but not least, put back the graduated dial.

E-series grinder
  • Tighten the crank handle counter-clockwise with the graduated dial fixed until the crank handle is unable to swing.

Warning:
Do not attempt to disassemble or remove the following components:

E-series grinder

The central shaft and the burr

Q2 grinder

The burr ring unit and outer burr

E-series grinder

The bearings attached to the hopper

Precautions

  • Do not clean and wash the grinder with water.
  • Do not wipe your grinder with solvents other than water and alcohol.
  • Keep it in a dry environment in order to extend its lifetime.
  • Follow the instructions of re-assembly, ensure to place the components into the correct positions.
  • Keep the grinder away from children for safety concerns.

K-Plus Grinder with the burr set

How to Clean and Maintain 1Zpresso Manual Coffee Grinder? (External Adjustment Version)

Greetings, fellow coffer-lovers.

How often that you clean your 1Zpresso manual coffee grinder? 
Proper maintenance could prolong the life of your grinder for a long period of time.
We advise customers to dismantle the grinder once a month to perform cleaning and maintenance.
The grinder could dismantle without any helps from the tool.

Here is a reassemble tutorial for the top adjustment mechanism of J-Max & K-Pro & K-Plus grinder.
You also can find the cleaning and maintenance tutorial of the internal adjustment and top adjustment from our blog. 
Below image demonstrating the re-assembly with K-Plus grinder.




Step 1:

Remove the crank handle and the catch-cup.

K-Plus Grinder without the crank handle and the magnetic catch-cup

J-Max grinder: Turn the adjustment dial ring clockwise by around two rotations

J-Max grinder at around two rotations grind settings



Step 2:

Pressing the burr set and loosen the knurled thumb nut by turning counter-clockwise.

Pressing the burr of K-Plus Grinder
Loosening the knurled thumb nut of K-Plus Grinder



Step 3:

Take out the burr set by pressing down the central shaft. Collect the upper ring cap and the upper bearing which inside of the adjustment dial ring.

Remove the burr set of K-Plus Grinder
Take out the upper bearing cap and the upper bearing of K-Plus Grinder

Step 4:

K-Pro & K-Plus grinder:
The adjustment dial ring and the outer burr ring can be taken out by turning clockwise. (For K-Pro grinder user: Attaching the catch-cup to remove the outer burr ring by turning clockwise.)


Remove the adjustment dial ring of K-Plus Grinder

Remove the outer burr ring of K-Plus Grinder

J-Max grinder:
The outer burr ring can be taken out by turning clockwise. Disassembling the adjustment dial ring is not suggested.

Note: the outer burr ring unable to remove without taking out the burr set.

Warning about disassemble the adjustment dial ring of J-Max grinder



The magnetic catch-cup of K-Plus grinder could be dismantled in three parts. Remove the magnetic attachment ring by turning counter-clockwise. Turn counter-clockwise to separate the closed receiver from the open receiver.

Perform the step reversely to recover the catch-up.

Remove the magnetic attachment ring of K-Plus Grinder
Change the closed receiver from the open receiver of K-Plus Grinder
The blind shaker of K-Plus Grinder
Press to remove for throughout cleaning.



Step 5:

Take out the pc lid by turn counter-clockwise throughout cleaning. Apply some strength to detach the wooden ball.

Clean it with the brush & air blower and be sure do not to apply water to wash it.

Cleaning and maintenance of K-Pro grinder

Step 5.1

There is another design of the crank handle. It needs a 6mm hex key/Allen key to remove the pc lid by turning counter-clockwise.

Remove the crank handle of K-Pro grinder



Step 6:

Put the wooden ball into the crank handle till you hear a click sound and tighten the pc lid by turn clockwise.

Turn the outer ring burr counter-clockwise to secure.

The full parts of K-Plus Grinder

Step 6.1:

Followed by step 5.1. Apply a 6mm hex key/Allen key to install the pc lid by turning clockwise till it tightens.   

Tighten the crank handle of K-Pro grinder with a hex key


Step 7:

Place the pieces in order to ensure the grinder works perfectly. The central shaft and the burr set fixed together, you need to put it back into the grinder. Before that, you have to place the spring then the bearing cap on the burr set.

Note: the spring is the conical shape in which you need to place the larger surface upward as the opposite of the smaller surface and the protruding side of the bearing cap consider facing upward.

The spring and the bearing cap attach on the burr of K-Plus Grinder
Install the burr set into K-Plus grinder
Holding the burr of K-Plus grinder

Step 8:

Insert the upper bearing into the adjustment dial ring. Now it is a tricky part, you would notice there is a horseshoe shape appearing from the upper bearing cap. The flat side from the upper bearing cap needs to match the flat side of the central shaft as well.

Placing the bearing into K-Plus grinder
Placing the bearing cap into K-Plus grinder

Step 9:

Pressing the burr set and tighten the knurled thumb nut by turning clockwise till you feel a resistance (do not overtighten or it hurt the burr set).

The next and the last step is the calibration, kindly read the post of How to Calibrate 1Zpresso Grinders? from our blog.

Tighten the knurled thumb nut of K-Plus grinder
A fat hand holding K-Plus Grinder
  • K-Plus Grinder | K-Pro Grinder
  • J-Max grinder
  • K-Plus Grinder
  • K-Pro Grinder
  • J-Max grinder
  • K-Plus Grinder with the travel case
  • K-Pro with the Cylinder Case
JX-Pro Grinder with the burr set

How to Clean and Maintain 1Zpresso Manual Coffee Grinder? (Top Adjustment Version)

Greetings, fellow coffer-lovers.

How often do you clean your 1Zpresso manual coffee grinder? 
Proper maintenance could prolong the lifetime of your grinder.
We advise customers to dismantle the grinder once a month for cleaning and maintenance.
The grinder could be dismantled without any tool.

Here is a reassembly tutorial for the top adjustment mechanism of JX-Pro & JE-Plus grinder.
You also can find a cleaning and maintenance tutorial of the internal adjustment and external adjustment from our blog.
Images below demonstrate the reassembly of JX-Pro grinder.

The full expanded view of JX-Pro grinder

Disassembly


Step 1:

Take off the crank handle, remove the adjustment dial by turning it counter-clockwise while holding the grinder and remove the catch-cup.

Removing the adjustment dial of JX-Pro grinder



Step 2:

Loosen the knurled thumb nut by turning counter-clockwise while pressing the burr from the bottom.

Pressing the burr of JX-Pro grinder
Loosening the knurled thumb nut of JX-Pro grinder



Step 3:

Remove the burr set by pressing down the central shaft. Take out the sliding column from the upper ring cap where the upper bearing and the upper bearing cap lying.

Remove the burr set of JX-Pro grinder
Take out the sliding column, the upper ring cap and the upper bearing of JX-Pro grinder



Step 4:

The upper ring cap can be disassembled by turning clockwise. Attach the catch-cup to remove the outer burr ring by turning clockwise. Note: Do not remove the outer burr ring without taking out the burr set.

Disassemble the upper ring cap of JX-Pro grinder
Disassemble the catch-cup of JX-Pro grinder


Step 5:

Loosen the PC lid by turning it counter-clockwise for a thorough cleaning. Detach the wooden knob with some force.

Clean the grinder with a brush & air blower and be sure not to wash it with water.

The full parts of JX-Pro Grinder



The magnetic catch-cup of JE-Plus grinder could be dismantled into three parts. Remove the magnetic attachment ring by turning it counter-clockwise. Separate the closed receiver from the open receiver by turning counter-clockwise.

Remove the magnetic attachment ring of JE-Plus Grinder
Change the closed receiver from the open receiver of JE-Plus Grinder
The blind shaker of JE-Plus Grinder
Press to remove for throughout cleaning.

Step 5.1:

There is another design of the crank handle. It needs a 6mm hex key/Allen key to remove the pc lid by turning it counter-clockwise.

Remove the crank handle of JX-Pro grinder

Reassembly


Step 6:

Attach the wooden knob to the crank handle and you will hear a click sound. Tighten the PC lid by turning it clockwise.

Make sure to completely tighten the outer burr ring and the upper ring cap counter-clockwise.

The full parts of JX-Pro Grinder

Step 6.1:

Followed by step 5.1. Use a 6mm hex key/Allen key to install the PC lid by turning it clockwise to the tightest.

Tighten the crank handle of JX-Pro grinder with a hex key


Step 7:

Put the parts back in order to ensure the grinder works properly. Before attaching the burr set to the body, you have to put the spring then the bearing cap back on the burr set.

Note: The wide side of the conical-shaped spring and the side of the bearing cap with a raised edge should face upward.

The spring and the bearing cap attach on the burr of JX-Pro grinder
Holding the burr of JX-Pro grinder
Install the burr set into JX-Pro grinder

Step 8:

There is a dot at the back of the sliding column. Place the sliding column (which connects the dot at the sliding column with the dot at the adjustment dial) inside the hopper.

Put the sliding column into the upper ring cap, then the upper bearing.

Now it is a tricky part, you might notice that the upper bearing cap is horseshoe shape. The flat side of the upper bearing cap needs to match the flat side of the central shaft.

Placing the bearing into the sliding column of JX-Pro grinder
Put the sliding column into the upper ring cap of JX-Pro grinder
The horseshoe shape of the upper bearing from JX-Pro grinder
Assemble the parts from JX-Pro grinder correctly

Step 9:

Tighten the knurled thumb nut by turning it clockwise while pressing the burr set.

Free your hand from pressing the burr set, tighten the adjustment dial by turning clockwise till you feel resistance (do not overtighten or it hurts the burr set).

Where the crank handle is unable to move dramatically is the zero point of the grinder.

Tighten the knurled thumb nut of JX-Pro grinder
Tighten the adjustment dial of JX-Pro grinder
A fat hand holding JX-Pro grinder
  • JX-Pro Grinder
  • JE-Plus Grinder

JX Grinder with the burr set

How to Clean and Maintain 1Zpresso Manual Coffee Grinder? (Internal Adjustment version)

Greetings, fellow coffer-lovers.

Do you take good care of your 1Zpresso manual coffee grinder? 
Proper maintenance could prolong the life of your grinder for a long period of time.
We advise customers to dismantle the grinder once a month to perform cleaning and maintenance.
The grinder could dismantle without any helps from the tool.


Here is a reassemble tutorial for the internal adjustment mechanism of Q2 & JX & JE grinder.
You also can find the cleaning and maintenance tutorial of the top adjustment and external adjustment from our blog.
Below picture using JX grinder demonstrating the re-assembly.

Step 1:

Use your non-dominant hand to grab the top of the grinder and use the dominant hand to remove the catch cup by turn counter-clockwise.

Removing the catch-cup of JX Grinder

Step 2:

Turn adjustment counter-clockwise till adjustment dial fell off and remove the burr set. Take it out of the spring and the bearing cap.

Removing the adjustment dial of JX Grinder

Removing the outer burr ring of JX Grinder

Step 3:

Attaching the catch-cup to remove the outer burr ring by turning clockwise.

Note: the outer burr ring unable to remove without taking out the burr set.

Removing the outer burr ring with the catch-cup of JX Grinder

Step 4:

Take out the pc lid by turn counter-clockwise throughout cleaning. Apply some strength to detach the wooden ball.

Clean it with the brush and be sure do not to apply water to wash it.

Removing the pc lid of JX Grinder
The full parts of JX Grinder

Step 4.1:

There is another design of the crank handle. It needs a 6mm hex key/Allen key to remove the pc lid by turning counter-clockwise.

Remove the crank handle of JX grinder

Step 5:

Put the wooden ball into the crank handle till you hear a click sound and tighten the pc lid by turn clockwise. Install the crank handle in the central shaft.

Turn the outer ring burr counter-clockwise to secure. Place the pieces in order to ensure the grinder works perfectly. The protruding side of the bearing cap consider facing upward, then the spring.

Installing the bearing cap of JX grinder
There are two sides of the bearing cap,
the flat side and the protruding side.  

Step 5.1

Followed by step 4.1. Apply a 6mm hex key/Allen key to install the pc lid by turning clockwise till it tightens. 

Tighten the crank handle of JX grinder with a hex key

Step 6:

Install the burr set and the adjustment dial by turn clockwise to tighten the grinder till the crank handle unable to move dramatically.

And your 1Zpresso manual coffee grinder is ready to go.

Installing the burr set of JX Grinder
Be sure to check out the rectangle shape
to install the burr set correctly
JX Grinder with the burr set
An alternative tutorial for J-Series grinder on YouTube. You can CC for the English subtitle. 
An alternative tutorial for Q-Series grinder on YouTube. You can CC for the English subtitle. 

  • JX Grinder
  • JE Grinder
  • Q2 Grinder - Pentagonal Version
  • Q2 Grinder - Pentagonal Version

1Zpresso K-series grinders - K-Plus, K-Max, K-Pro

How to Choose a 1Zpresso Manual Coffee Grinder?

1Zpresso Grinder Selection

Greetings, fellow coffee-lovers. Here we go again.

We consider ourselves a player-type manual coffee grinder company as we are constantly improving the features of the manual coffee grinders based on the feedback from our beloved coffee-lovers.   

I could think of the most common questions that we’ve received are:

How to choose a 1Zpresso manual coffee grinder? There are so many of them.
What’s the difference between K-Plus and JE-Plus? I am so confused!
How do I perform the grind setting adjustment?
The mystery had been solved.
How do I calibrate my 1Zpresso manual coffee grinder? Another mystery had been solved.
How do I clean and maintain my grinder? (Internal adjustment & Top adjustment & External adjustment)

There are three kinds of adjustment mechanisms for 1Zpresso manual coffee grinder, the classic Internal adjustment design (Q2, JX, JE, JS grinder), the fine Top adjustment design (JX-Pro, JE-Plus grinder), and the proudly announced awarded External adjustment design (J-Max, K-seriesK-Pro & K-Plus grinder).

Besides, the Accessories are included in the Pro, Plus and Max tiers grinder.
We are going to reveal all the features of the 1Zpresso manual coffee grinder to clear your wonder. 

Pour-over

Q2 Grinder
One of the ideal items to go camping and hiking with. Nothing beats glazing over the horizons on top of the mountain while enjoying a coffee break. A friendly travel-sized grinder with a 38mm burr size could fulfill your daily pour-over coffee needs.

JX Grinder
I would recommend JX grinder to the coffee-lovers who’re mainly brewing pour-over. It has a large burr of 48mm and the classic Internal adjustment, resulting in better grinding efficiency.

Espresso

JE Grinder
I would recommend JE grinder to the coffee-lovers who’re mainly brewing espresso. It is equipped with a burr of 47mm and the classic Internal adjustment.

JE-Plus Grinder
The premium version of JE grinder. The Itamill-coated burr set is 47mm and the fine top adjustment moves the burr by 12.5 microns per click. The magnetic catch-cup is ideal for brewing espresso and works well with 51mm and 58mm portafilter.

J-Max Grinder
The latest espresso grinder from 1Zpresso. J-Max grinder with Coated-Burr design and the Magnetic Catch-cup design. The External Adjustment with 90 clicks/9 numbers per rotation, 10 clicks per number and 8.8 microns per click. It is the finest adjustment which you could easily find the sweet spot of your espresso.

Pour-over & Espresso

JX-Pro grinder
The advanced version of JX grinder, sharing the same 48mm burr set except for the adjustment mechanism. The all-round grinder with a fine adjustment design (12.5 microns per click).

K-Pro grinder
K-Pro has the External adjustment with 90 clicks per round, and the specialized 48mm K Burr makes grinding more efficient.

K-Plus grinder
It has the same external adjustment design with 90 clicks per round, the specialized 48mm K Burr as K-Pro grinder, and the same magnetic catch-cup design as JE-Plus grinder with a capacity of 35~40g.

The 1Zpresso manual coffee grinders selection with the brewing method, burr, adjustment, receiver and weight

The Grinding Result of 1Zpresso Grinder

Here are some results for grinding 15g light-roasted coffee beans on Nov 19, 2020.
It might help clear your wonder about the grinding consistency, but it is not a professional test for particle distribution though.

Pour-over

1Zpresso Q2 grinder with the ground result
Q2
1Zpresso JX grinder with the ground result
JX

Espresso

1Zpresso JE grinder with the ground result
JE
1Zpresso JE-Plus grinder with the ground result
JE-Plus

Pour-over & Espresso

1Zpresso JX-Pro grinder with the ground result
JX-Pro
1Zpresso K-series grinder with the ground result
K-Series

Calibration of 1Zpresso Grinders

How to Calibrate 1Zpresso Grinders?

Calibration of 1Zpresso Grinders

There are three types of adjustment designs for 1Zpresso grinders, including internal adjustment, top adjustment and external adjustment. Many people might be curious about how to calibrate each of them. Therefore, today we’re going to explain to you.

How to Find the Zero Point / Starting Point?

First of all, we would like to define the zero point/starting point of our grinders. Turn the adjustment dial clockwise all the way to find the zero point/starting point of the grinders. We define it to be at the point which the crank handle won’t rotate drastically instead of its tightest.


Internal Adjustment

Q2 / JX / JE

For people who have the Q2 / JX / JE, which are equipped with the internal adjustment, congratulations, you’ve already found the starting point by turning the adjustment dial clockwise till the crank handle won’t rotate drastically. The numbers on the dial are designed for counting how many steps you’ve turned and therefore the starting point is not necessary to be at #0.

Calibrating the 1Zpresso JX grinder

Top Adjustment

JX-Pro / JE-Plus

Calibrating the 1Zpresso JX-Pro grinder
The full expanded view of JX-Pro grinder

Generally, the top adjustment shares the same concept with the internal adjustment that the numbers on the dial are designed for counting how many steps you’ve turned and therefore the starting point is not necessary to be at #0. However, if you would like to set the starting point to #0, please follow the few steps below:

Step 1. When the dot points to #1/#2/#3 instead of #0 at the tightest, please simply remove the adjustment nut (by twisting it counterclockwise).

Step 2. Adjust the knurled thumb nut counter-clockwise by 1/2/3 clicks.

Step 3. Screw back the adjustment nut and the starting point should be at #0 (±2 clicks).


External Adjustment

K-Pro / K-Plus

For the K-Pro / K-Plus, to set your grinders to zero, please follow these steps:

The full expanded view of K-Pro, K-Plus and K-Max grinder

Step 1. Tighten the adjustment dial counter-clockwise and ensure the gap inside is fully closed.

Calibrating the 1Zpresso K-Pro grinder

Step 2.

  • If the red dot is at the right of #0, loosen the adjustment dial clockwise a little bit, loosen the knurled thumb nut counter-clockwise and re-tighten the dial while pressing the burr from the bottom.
  • If the red dot is at the left of #0, note the clicks of distance from #0 (for example, 12 clicks), loosen the adjustment dial clockwise a little bit, and tightened the knurled thumb nut counter-clockwise by around 12 clicks while pressing the burr from the bottom.


Step 3. Repeat step 1 and 2 until the red dot points to #0.

Calibrating the 1Zpresso K-Pro grinder

External Adjustment

J-Max

The full expanded view of J-Max grinder

The starting point should be where the #0 is aligned with the scale mark, and the bottom edge of the adjustment dial ring touches the first tier of the scale mark.

Tighten or loosen the knurled thumb nut while pressing the burr from the bottom to set the starting point to #0.


Correct calibration of J-Max grinderIncorrect calibration of J-Max grinder

Barista tuning the grind settings of J-Max grinder

How to Set 1Zpresso Grind Settings?

1Zpresso Grind Settings Tutorial

Greetings, fellow coffee-lover.

Do you know how to read the grind setting reference charts of the 1Zpresso manual coffee grinder? 
Here is a tutorial for y’all to learn. 

I’m personally tired of carefully adjusting the grinder when there are many clicks without knowing where I am. 

All the burrs in the grinders were calibrated by the 1Zpresso team to ensure maximum stability over time.
As the outer ring and the burr were built through precision finishing, tolerance is expected and the outer ring and the burr would touch at the first few clicks. Constant touching might damage the burr set.

Many of you know there are many models of 1Zpresso manual coffee grinder.

How to find the Zero Settings?

It is intuitive to adjust the external adjustment design as you could just note where the red dot points.

I think it is quite easy for the internal and top adjustment design as well. Adjust the adjustment dial clockwise till you feel resistance, and that’s the zero setting.

These three kinds of adjustment design share a common point of the zero setting: at the click which the crank handle is unable to move drastically.

1Zpresso Manual Coffee Grinder

Adjustment design of 1Zpresso Manual Coffee Grinders

1Zpresso Grinders Adjustment Numbers per rotation Clicks per rotation Clicks per number MM per click
Q2 & JX & JE Internal 10 numbers 30 clicks 3 clicks 0.025mm
JX-Pro & JE-Plus Top 10 numbers 40 clicks 4 clicks 0.0125mm
J-Max External 9 numbers 90 clicks 10 clicks 0.0088mm
K-Plus & K-Pro External 9 numbers 90 clicks 10 clicks 0.022mm

Internal Adjustment Design

Q2, JX, JE Grind Setting Reference Tutorial

0.5 rotation = turn counter-clockwise 5 numbers. (15 clicks)
0.7 rotation = turn counter-clockwise 7 numbers. (21 clicks)
1 rotation = turn counter-clockwise a round. (30 clicks)
1.4 rotations = turn counter-clockwise a round and 4 numbers.
(42 clicks)
2.5 rotations = turn counter-clockwise 2 rounds and 5 numbers.
(75 clicks)

Barista adjusting the internal adjustment design of the 1Zpresso JX grinder
Barista adjusting the top adjustment design of the 1Zpresso JX-Pro grinder

Top Adjustment Design

JX-Pro & JE-Plus Grind Setting Reference Tutorial

0.8 rotation = turn counter-clockwise 8 numbers. (32 clicks)
1.5 rotation = turn counter-clockwise a round and 5 numbers.
(60 clicks)
2.8 rotations = turn counter-clockwise 2 rounds and 8 numbers.
(112 clicks)
3.6 rotations = turn counter-clockwise 3 rounds and 6 numbers.
(144 clicks)
4.8 rotations = turn counter-clockwise 4 rounds and 8 numbers.
(192 clicks)

External Adjustment Design

J-Max Grind Setting Reference Tutorial

1.5 rotations = turn clockwise a 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)

Barista adjusting the external adjustment design of the 1Zpresso J-Max grinder
  • J-Max grinder
Barista adjusting the external adjustment design of the 1Zpresso K-Plus grinder

External Adjustment Design

K-Plus & K-Pro Grind Setting Reference Tutorial

1.5 numbers = turn clockwise to #1 and 5 clicks. (15 clicks)
3.2 numbers = turn clockwise to #3 and 2 clicks. (32 clicks)
8.6 numbers = turn clockwise to #8 and 6 clicks. (86 clicks)
10 numbers = turn clockwise one full round to #0 and 1 number. (100 clicks)




Our office will be closed from Sep 18th to 21st (GMT+8) due to the Moon Festival.
Orders placed during this period will be shipped after Sep 22nd.

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