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1Zpresso JX vs JX Pro vs J Max

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By Matt Woodburn-Simmonds

Sadly, 1Zpresso has discontinued all 3 of these incredible grinders. All’s not lost though as you may be able to find them second-hand or in the Asian market. They’ve also replaced them with some even better options in their J-series – we’ve outlined them all in another article so you can still find the best grinder for you. Just click through, here:

It’s no secret that 1Zpresso is one of our favorite companies making some of the best manual grinders out there. When they released their latest in the JX range, the J Max, we had to check it out and see how it compared to the other 1Zpresso grinders.

To help you decide which of their excellent grinders is right for you, we have the ultimate 1Zpresso JX vs JX Pro vs J Max showdown. What are the differences and which one is best?

We’ve got the complete guide to help you pick between these amazing coffee grinders, so let’s dive right in:

This article may contain affiliate/ compensated links. As an Amazon Associate, we earn from qualifying purchases at no additional cost to you. For more information please see our disclaimer here.

Our Top Choice

1Zpresso J Max in man's hands

J Max

The 1Zpresso J Max isn’t just our favorite of the J series – it’s our favorite manual grinder we’ve ever laid hands on. The range and consistency are incredible, making it a top choice no matter what brewing method you’re grinding for.

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Quick Comparison of 1Zpresso JX Range

Image Grinder Details Brewing Method
1Zpresso JX
  • 2.24 x 6.69 inches (7.09 inches with handle)
  • Weighs 1.51 lb
  • 30-35g capacity
Pour Over
1Zpresso JX Pro
  • 2.48 x 7.09 inches (7.48 inches with handle)
  • Weighs 1.72 lb
  • 30-35g capacity
1Zpresso J Max
  • 2.36 x 7.48 inches (7.87 inches with handle)
  • Weighs 1.68 lb
  • 35-40g capacity
Espresso or Pour Over

Quick note: This article was written before the release of the 1Zpresso J Ultra which has stepped in to replace the J Max. The latest model is better in just about every way – you can see our full J Ultra review, here – and all J Max links on Amazon automatically redirect to the J Ultra.

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Who are 1Zpresso?

Take a healthy dose of coffee obsession and add a sprinkling of engineering know-how, and 1Zpresso is born.

The Taiwanese company has taken the coffee-loving market by storm. Having listened to the pain points experienced by fellow coffee obsessives, they have created some of the best manual coffee grinders in the world. Their designs are intuitive, innovative, and just plain beautiful. So great, in fact, that they have won the prestigious Red Dot design award.

They have an extensive range of popular portable hand grinders so there is almost certainly an option to suit your needs. The J series is our favorite as the larger capacity and smooth burrs make this range the best hand grinders for the widest range of people.

Are there more affordable hand grinders out there? Sure. But they also don’t look as fantastic, feel as ergonomic, or produce as consistent ground coffee. So is the drop in price worth the drop in quality?

Read next: Best 1Zpresso Grinder (How to Pick from This Elite Lineup)

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What Comes in the Box?

When your brand new grinder arrives, what is included with it can make or break how easy it is to get started.

Being more stripped-back, relatively cheap ceramic burr grinders, both the 1Zpresso JX and JX Pro come with just a cleaning brush included. If you want a case for protection or travel, it will cost you extra.

The J Max feels a little more luxurious with a “cleaning blower” and cylinder case alongside the brush. It’s not much of a difference but if you’re looking to take your grinder away with you then having a case included is a nice extra to come as standard.

1zpresso J max manual coffee grinder in travel case
1Zpresso J Max in its Travel Case
1zpresso grinder size battle

What is the Size Difference Between JX, JX Pro, and J Max?

There isn’t much to separate the grinders when it comes to size.

They are all roughly the same diameter (ranging between 2.24 and 2.48 inches). The J Max is the tallest at 7.5 inches and the JX is the shortest at 6.7 inches, with the JX Pro falling in the middle of the two. 

As you’d expect with the size being so similar the weight is nearly identical too. The JX is 1.5 lb and the JX Pro and J Max are slightly heavier at 1.7 lb.

The grounds capacity of the JX and JX Pro are both 30-35g, which will do most people, to be honest. Living up to its name, the J Max has a slightly larger capacity of 35-40g. Realistically that’s around 1 more espresso – hardly game-changing stuff.

So, size isn’t really a factor when weighing up your options. Being a manual grinder, you do need to have a good range of motion in your hands/wrists. If you have particularly small hands like my wife you might struggle with the bigger J Max in mid-air. But she has no problems once stabilized on a flat surface. 

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What About the Burrs?

The burr quality is the important bit in terms of how well your grinder will perform. 1Zpresso use conical burrs in their full high-performance hand grinder range. In each of the JX models, you will find 48mm conical burrs.

Where they differ is that the J Max has titanium-coated burrs rather than the stainless steel ones of the JX and JX Pro.

What does this mean for you?

Titanium-coated burrs are much more durable and will last up to 5x longer than stainless steel ones. So, investing in the J Max manual coffee grinder is an investment in a much longer future together. A relationship that will never let you down.

We have also seen claims in coffee forums (not by 1Zpresso themselves) that titanium-coated burrs cut down on static that keeps fines stuck in your grinder. But this is a purely anecdotal claim which we can’t find any reason for. Regardless, the burrs on all of the JX, JX Pro, and J Max are high-quality so you shouldn’t suffer from static as long as you take good care of your grinder.

The JX Pro and the J Max have the same design in terms of the burr being attached to the central shaft to help with stability and consistency of grinding. The JX has a slightly different design which can cause the grind consistency to struggle at the coarser end of the spectrum.

48mm titanium coated stainless steel conical burr from 1zpresso J max coffee grinder
The titanium-coated conical burr in the J Max

How Many Grind Settings?

As you’d expect, with each new release 1Zpresso has increased the number of grind settings.

So the JX has the least number of settings of the three grinders with 30 clicks in a full rotation. Each move of the internal dial being a 25 microns difference in grind size.

Next is the JX Pro which has 40 clicks in a full rotation but over 200 clicks of range total! Each click of the top adjustment dial is 12.5 microns. This is obviously an insane increase in grind size accuracy from the JX and allows much finer dialing in of your grinder. This makes it especially useful as a dedicated espresso grinder.

The J Max offers the greatest precision of any of the grinders from its external adjustment dial. With an 8.8 micron per click adjustment level and over 400 clicks in total – 90 per rotation – you can really fine-tune your grind size for whatever style of coffee you’re brewing. The J Max will even grind fine enough for making Turkish coffee if that’s your thing.

Like most things in life, you have to spend more to get more. There is a significant price difference between the JX and the J Max – around $70. But you get a whole lot more control over grinding your coffee for that extra money. If you’re debating between the JX Pro and J Max with a $40 difference, the extra precision and durability win out for us. 

1Zpresso JX Pro, JX, J Max close up of adjustment dials
Clockwise from top-right: JX Pro, J Max, JX
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Which is Easier to Use – the JX, JX Pro or J Max?

The JX Pro and J Max are equally easy to use as the grind size dial is on the outside or top of the grinder. You simply fill the upper chamber with the amount of beans you want to grind then crank the handle. The JX is slightly more inconvenient, but not necessarily difficult, to use as the grind adjustment dial is underneath the burr.

The 1Zpresso J Max also benefits from having a magnetic release on the grounds container. You still need to twist the container so it’s not quite as effortless as the JE-Plus, one of 1Zpresso’s other hand grinders. But it is still better than the regular screw method. 

There are 2 possible ease-of-use issues with each of these grinders:

The first is that you need to weigh your beans separately. This means you need a scale to weigh your beans on.

Most people already have an electronic scale somewhere at home if you’re happy not to get the precision of decimal places. But a dedicated coffee scale won’t set you back too much money and will give you much more control. That said, it is still more work than some electric grinders. 

The second is that whilst the dials have numbers around the outside, you can rotate them multiple times. For example, the J Max has 90 marked points but 400 odd settings.

Unless you’re regularly going to go from espresso to French press, this probably won’t bother you. But you’ll need to note how many clicks you turned from finest or coarsest or the total in between your various settings. Otherwise, you’ll end up getting the wrong grind sizes.

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How Consistent are the Grounds?

No matter whether you are looking at the 1Zpresso range or other premium grinders, the most important factor is the consistency of grind size.

Each coffee grinder in the JX range is very good in this respect. Although they all get slightly less consistent at the coarsest settings, this is true with almost all grinders. 

The JX does stand out as being slightly worse than its big brothers. Both the JX Pro and J Max have the same design – a central pillar attached to the burr for added stability. But because the JX doesn’t have this, the grounds are less consistent in size.

None of the grinders suffer with “fines” – very small grounds, being stuck in the burrs. This means you’re always getting the freshest coffee and the mechanisms don’t get bunged up with coffee grounds, affecting your grinders lifespan.

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Are 1Zpresso Grinders Easy to Clean?

All the J series options in the 1Zpresso manual grinder range are very easy to clean as they can be taken apart and cleaned with the brush provided.

Similar to other manual hand grinders, you need to have a bit of space when you decide to clean it. To avoid losing any of the parts, you will want to lay them all out and take care as some of them are pretty small. 

This may seem a bit of a pain but there are many manual coffee grinders that can’t be taken apart and cleaned. Honestly, this is so much worse than dismantling and cleaning out your grinder every few weeks. If you can’t clean it out properly, you will get a build-up of old coffee grounds which will affect the quality of your cup of joe and will eventually slow down the effectiveness of your grinder. 

Remember you don’t need to use water to clean your grinder. Simply brushing it will get the job done and it’ll take probably less than 20 minutes in total. Easy.

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So should I get the 1Zpresso JX, JX Pro, or J Max?

Yes. It’s just a question of which is the ideal coffee grinder for you.

Infographic:1Zpresso JX vs JX Pro vs J Max

The first thing to consider when making any purchase is always the price. You can pick up the JX for $30 cheaper than the JX Pro and $70 cheaper than the J Max. But the difference in quality between the JX and the other two means that the extra spend is worth every cent

So the real question is whether the J Max is worth the extra cost over the JX Pro.

Whilst the J Max has an extra 5g capacity, I don’t feel this is “make or break” when it comes to the two grinders. The real point of difference is their precision and how you are planning to brew your perfectly ground beans:

The much larger grind range and incredible 8.8 micron increments make the J Max an ideal espresso dedicated grinder. If you’re looking to dial in your espresso with extreme precision, then the J Max is absolutely worth the extra money. Many electric grinders will cost you double for the same level of functionality so, in that respect, you’re saving a lot of money for what you’re getting.

If you’re a casual coffee drinker just looking for a good quality coffee grinder for your home set up, the JX Pro is a superb piece of kit and will do a brilliant job. We love our JX Pro but for the top dog in the battle of 1Zpresso JX vs JX Pro vs J Max – the J Max will always come out on top. The super precise grind size, lovely carry case, and suitability for a range of brewing methods make it our go-to when grinding at home.

Want More 1Zpresso Reviews?

Take a deeper dive into the world of 1Zpresso with our individual product reviews:


Matt Woodburn-Simmonds

Matt's coffee obsession started in 2006 when working as a Barista. A tendency to turn up to work hungover kickstarted his coffee journey which quickly turned into a love affair. As he moved on to work as a Restaurant Manager and Sommelier, the obsession continued to grow. Now, his passion is helping others to enjoy better coffee at home.

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