K-Max vs. J-Max

What is the difference between K-Max and J-Max?

Customer A

Are K-Max and J-Max shared the same magnetic catch-cup?

Customer B

Why is that the adjustment design of K-Max and J-Max are dissimilar design but shared the same name of the external adjustment? 

Customer C

Both K-Max and J-Max grinders are overall grinders that could brew for several methods.

The Stainless steel burr design aka K burr of K-Max grinder and the Titanium-coated burr design of J-Max grinder is different.

The adjustment design of K-Max and J-Max grinder is the External adjustment.
The adjustment mechanism of K-Max grinder is the same aligned with K-Pro & K-Plus grinder as 90 clicks per rotation, 10 clicks per number, 22 microns per click.
On the other hand, J-Max grinder employs the new adjustment mechanism as 90 clicks per rotation, 10 clicks per number, 8.8 microns per click.

The Magnetic catch-cup of K-Max and J-Max grinder allows you to remove it in a flash with the capacity of 35~40g.

K-Max grinder is considered the overall grinder and J-Max grinder is ideal for espresso brewing.
J-Max grinder produces more fine particles compared to K-Max grinder.

The Cylinder case is pairing with K-Max and J-Max grinder.


J-Max vs. JX-Pro

Is J-Max and JX-Pro grinder shared the same burr design? But the difference in burr set is that the coating burr with J-Max grinder.

Customer A

Is the espresso grinder – J-Max grinder can also brew for pour-over?

Customer B

Both J-Max and JX-Pro grinders are overall grinders that could brew for several methods.

The Titanium-coated burr design of J-Max and the Stainless-steel burr design of JX-Pro grinders are different
The adjustment design of J-Max grinder is the External adjustment as 90 clicks per rotation, 10 clicks per number, 8.8 microns per click whereas there is the Top adjustment design of JX-Pro grinder is 40 clicks per rotation, 4 clicks per number, 12.5 microns per click.  

The Magnetic catch-cup of J-Max grinder allows you to remove it in a flash with the capacity of 35~40g.
The capacity of the Classic catch-cup design with JX-Pro grinder is 30~35g.

Both grinders are the overall grinders for several brew methods and are ideal for espresso brewing,
J-Max grinder allows more minor clicks to explore the sweet spot of the espresso compare to JX-Pro grinder.
J-Max grinder produces more fine particles compared to JX-Pro grinder.

J-Max: 0.0088mm < JX-Pro: 0.0125mm

The Cylinder case is pairing with J-Max grinder.
The Cylinder case or the Travel case of JX-Pro grinder could be select with extra bucks.


Q2 vs. JX

Why is that both Q2 grinder and JX grinder specified lists as pour-over?

Customer A

Is Q2 and JX grinder is the right grinder for me? My brew methods are Aeropress, Siphon and French press.

Customer B

Q2 and JX grinders are made for pour-over and it suits the brew methods like Pour-over, Aeropress, Siphon, Moka-pot, drip coffee and French press.

In short, the burr designs of Q2 and JX grinders are different.
However, it shared the same Internal adjustment design as 30 clicks per rotation, 3 clicks per number and 25 microns per click.
The capacity of the Classic catch-cup design with Q2 grinder is 15~20g whereas JX grinder is 30~35g.

Q2 grinder is considered a lightweight grinder for the coffee user who enjoys outdoor activities like camping.
JX grinder produces fewer fine particles compared to Q2 grinder.

Both Q2 and JX grinders could be pairing with the Cylinder case or the Travel case.
Both weighted less than a kg that could be a great essential for your travel companion and you.


JX-Pro vs. K-Pro vs. K-Plus

Pardon, I was intriguing about the difference between JX-Pro and K-series grinder (K-Pro & K-Plus grinder).

Customer A

Why is it that JX-Pro & K-Pro & K-Plus grinders are listed as overall grinders that could do espresso pour-over?

Customer B

The burr design and the adjustment design of JX-Pro and K-series grinder (K-Pro & K-Plus grinder) are different, even it is the same burr size of 48mm and the same stainless steel burr materials.

The Top adjustment design of JX-Pro grinder is 40 clicks per rotation, 40 clicks per number and 12.5 microns per click.
The External adjustment design of K-series grinders is 90 clicks per rotation, 10 clicks per number and 22 microns per click where you could set the desired grind setting freely.
K-series grinder produces even consistent grinding results and generates fewer fine particles.

The capacity of the Classic catch-cup design with JX-Pro and K-Pro grinders is 30~35g.
The Magnetic catch-cup of K-Plus grinder allows you to remove it in a flash with the capacity of 35~40g.
And the bottom of the catch-cup is changeable to a more espresso-friendly feature to fits the 1Zpresso Coffee Maker Stainless Steel Powder Container and the 51/58mm Baskets.

The Cylinder case is pairing with K-Pro grinder.
The Travel case is pairing with K-Plus grinder.
The Cylinder case or the Travel case of JX-Pro grinder could be select with extra bucks.
It is an ideal gift for friends and family.

Find the post below for further details on K-series grinders (K-Pro & K-Plus grinder).

K-Pro vs. K-Plus

What is the difference between K-Pro and K-Plus grinder?

Customer A

What are the extra feature that K-Plus have and K-Pro grinder doesn’t?

Customer B

Why is “Plus” worth more few extra bucks than “Pro”?

Customer C

The burr design and the adjustment design of K-Pro and K-Plus grinder are the same, ipso facto, so as the grinding result.

The burr design is the 48mm stainless steel burr.
The External adjustment design of K-series grinders is 90 clicks per rotation, 10 clicks per number and 22 microns per click.
It is considered an overall grinder – K-Pro nor K-Plus grinder and it could brew several methods.

The main difference is K-Plus grinder came with a Magnetic catch-cup (35~40g), which allows you to remove it in a flash.
And the bottom of the catch-cup is changeable to a more espresso-friendly feature to fits the 1Zpresso Coffee Maker Stainless Steel Powder Container and the 51/58mm Baskets.
On the other hand, the capacity of the Classic catch-cup design with K-Pro grinder is 30~35g.

The Cylinder case is pairing with K-Pro grinder.
The Travel case is pairing with K-Plus grinder.


JX vs. JX-Pro

Why is that JX grinder only marked pour-over?
But why is that JX-Pro grinder is able to brew several methods?

Customer A

Why is the price difference between JX and JX-Pro grinder?

Customer B

Is “Pro” worth more few extra bucks? If yes, why?

Customer also B

Let’s break it down individually.

Both JX grinder and JX-Pro grinder shared the same burr design, the grinding result shall be similar. 
However, the dissimilarity between these grinders is the adjustment design.

There is Top adjustment design of JX-Pro and the advantage of the adjustment is gives more click (40 > 30) as compared to the Internal adjustment design of JX grinder.

Total of 40 clicks per rotation, 4 clicks per number and 12.5 microns per click of JX-Pro grinder whereas 30 clicks per rotation, 3 clicks per number and 25 microns per click of JX grinder.

You could tell with the adjustment design of JX-Pro grinder allow you to dial in more and minor clicks for several brew methods, especially espresso.

JX grinder and JX-Pro grinder lying with the cups
Adjusting the internal adjustment design of JX grinder
JX Grinder with the burr set
JX-Pro Grinder with the burr set
Adjusting the top adjustment design of JX-Pro grinder

J-Max grinder lying to the table

How to Use 1Zpresso Bands on your Manual Coffee Grinder?

1Zpresso Bands Tutorials

1Zpresso rubber bands are designed to attach to the grinder for better hand grips so the grinder won’t slip out your hands when grinding the coffee beans.

Before Installation

The grinder needs disassembling before you install the bands.

Where to install the 1Zpresso bands?

The ideal location would be the top or middle body of the grinder where most of the users would grab during grinding coffee beans.

The diameter of the JE-Plus grinder is considerably large for some users.
Attaching the band on the grinder would resolve this issue.

I must admit that we were amazed by the creativity of the customer.
For instance, putting the bands onto the catch-cup to reduce damages in case that the catch-cup falls on the floor.

Do send us an image via the social platforms (Facebook, Instagram, Email) to share what do you think of the most creative and effective way.

The 1Zpresso bands attaching J-Max grinder
J-Max grinder

J-Max grinder with the 1Zpresso bands lying on the table
J-Max grinder
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 & K-Max 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