1zpresso jx on the left and jx pro on the right

1Zpresso J & Jx Pro: Still Worth it in 2024?

The two new grinders in the Jx-series from 1Zpresso are some of the best manual grinders you can get today. But which one of them should you pick?

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Asser Christensen

Licensed Q Arabica Grader, M.A. Journalism

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I got the Jx and the Jx Pro when they were released back in 2019. Back then nobody really knew about 1Zpresso.

It feels like a long, long time ago, even though it’s just four years.

Today, the whole coffee equipment landscape has changed. And 1Zpresso is arguably one of the most well-known grinder brands.

The Jx grinders were the first two big smash hits produced by the Taiwanese company. Since then, 1Zpresso has released a ton of new products. Actually, they are almost famous (or notorious) for their big and confusing lineup. This means that some newer models might suit you better, even though the Jx series still has a great reputation.

Check out my big comparison post here if you want a rating/comparison of all the 1Zpresso models.

However, if your main focus is the J-series and how these more espresso-focused grinders work (including the new flagship product J-Max), then keep on reading.

Oh, one more thing: In 2023 the name of the Jx was changed to just “J”. It has a couple of small upgrades (foldable handle, finer thread on the catch cup) but besides that, it’s very similar to the 2022 Jx.

Tl;dr: I still highly recommend the J. If you’re on a budget, get the basic version. It’s still VERY competent. However, if you’re mainly looking for an espresso grinder, I’d probably consider upgrading to the J-Max instead of the Jx Pro.

For international orders, visit this page 🌍

1Zpresso J
1,353 Reviews
1Zpresso J

  • Sturdy, no-nonsense design
  • Super fast for a manual grinder
  • Great value for the money
 Please, note: I have had the grinders for over a year now. Here’s a video with my update view on both them.  

About 1Zpresso

1ZPresso is a relatively new Taiwanese coffee brand that primarily focuses on manual coffee grinders.

I encountered the company for the first time while visiting the Taipei Coffee Expo in 2017 and have since followed their work with curiosity.

While their early models were absolutely capable, the company didn’t make it to the premier league of grinders until 2019 with the imposing models in the Jx-series. 

For a while, I had been hoping to see a bigger grinder with 48 mm burrs from 1Zpresso. So when the company reached out to me and asked if I wanted to test the Jx and Jx Pro, I had no hesitation

1zpresso company in taiwan

I encountered 1Zpresso for the first at the coffee expo in Taiwan in 2017.

Design: Jx and Pro

The products in the Jx-series look great. These grinders are sleek and well-made, yet there’s attention to detail. The big wooden handle knobs are very nice in the hand, and the black color looks sexy on the basic Jx.

The Jx Pro has a grey-silver finish that you see on many of the company’s grinders.

Please note, that my early review unit of the Jx is black and has a glass receptacle. After the first iteration, 1Zpresso has continuously tweaked the design slightly.

The current design is aluminum-colored (similar to Pro) and has a wider rubber grip area.

It also comes with a better adjustment system giving you 30 clicks per full rotation vs 24 on the original. But more about that later.

  • Size: The basic model and the ‘Pro’ share many features, but immediately you’ll notice that the latter is taller and heavier.
  • Adjustment: Another main difference between the two grinders is the adjustment. On the Pro model, you have more settings and easier access to the adjustment. 

Both Jx-models have a broad rubber band covering much of the body, which gives an excellent grip. This is important as the diameter of the grinder is rather big.

On the inside, there are two bearings ensuring ultra-smooth spinning action. As always, with grinders from 1Z, the bearings are some of the best in the industry.

The height and the adjustment system are some of the key differences between the standard and the pro

Overall, however, the build, the tactile sensations, and the ergonomics are amazing. They just feel good in the hand, look sexy, and grind smoothly.

As far as portability is concerned, these grinders are not travel-sized per se. The basic version weighs in at 650 grams/23 oz. Sizewise it’s comparable to Comandante C40 so it’s still possible to bring on a trip.

The Pro is considerably heavier than its little brother, weighing in at 3.8 oz/110 grams more. It’s comparable to some heavyweight manual grinders.

If you’re looking for a dedicated travel grinder, you should probably consider the Q2 from 1Zpresso instead.

Easy adjustment

The standard Jx has a very simple system with small clicks for each increment. There’s a total of 30 clicks per rotation.

In general, the adjustment on the Jx grinder is excellent and much less of a hassle compared to other grinders such as the Lido 3 or the Helor 101. It is quite similar to the popular Comandante, but with more precision, allowing for a more accurate adjustment, which is particularly useful for making espresso.

On my unit, however, they have made an unfortunate mistake, so you count backwards. In practice, it doesn’t affect the experience much, so I can live with it, and it should be an easy fix for future versions. It’s just a bit annoying.

On the Jx Pro, the adjustment dial is located on top of the grinder where you pour in the beans.

The adjustment on the Pro is very precise and responsive. Instead of 30 increments per rotation, you have 40.

This means that you have more options when it comes to dialing in an espresso shot.

However, the difference was more significant when compared to Gen 1.0 of the Jx grinder (the black version), which only had 24 clicks per rotation.

With 30 clicks, I feel that you can get quite close to your desired espresso extraction time.

On the Jx Pro, the range is wider, so you will never feel ‘stuck’ in-between settings.

old and new Jx adjustment wheel
The updated Jx (to the left) has 30 rotations per click compared to 24 on the old version. This helps when it comes to dialing in espresso.

Grind speed

The two Jx’ers are high-speed hand grinders, which I appreciate.

  • The Jx basic version is faster: It’s almost a true 1 second per gram grinder. It takes me about 25-30 seconds to grind my typical pour over dose of 20 grams of coffee. It’s by far the fastest manual grinder I have tried.
  • The Jx Pro is not quite as fast as the cheaper version, which surprised me.

After consistency, speed is the one thing I care most about when reviewing manual coffee grinders, and the Jx standard is the fastest I have ever tried.

(Update: Nowadays K-Max and J-Max are available and they are just as fast)

However, because the Jx’s burrs are very aggressive, it requires a lot of strength to turn the crank. Personally, I don’t find it difficult at all at a typical setting for pour over, but I’m 6.2 and in decent shape.

If you have small hands, arthritis, or little grip strength, you might find it difficult.

This is especially the case when you get to the finer end of the spectrum: When grinding finer, the two burrs will be closer to each other; obviously, this requires more force when turning the handle.

The Jx Pro is still a very fast grinder, but it’s not as fast as its little brother. The reason for this, as far as I can tell, is that the hopper is designed in a different way. It seems as if the beans are fed more directly into the burrs on the standard version.

I measured how fast both models could grind 15 grams on a pour over setting, and the result is 18 sec vs 24 sec.

I realize that this probably doesn’t sound like a lot when you’re reading a review, but in daily use, it means that I’d reach more often for the basic version.

The standard Jx gets a few bonus points for being faster.

Further Reading: 1Zpresso K-Plus Review

grind size for pour over 1zpresso jx
Standard on the left, and Pro on the right. No discernible difference.

Espresso vs pour over

In the official info from 1Z they mention that both Jx-models are designed specifically for espresso while also being suitable for pour over.

You should take that with a grain of salt. In my opinion, the standard Jx is more suitable for manual brewing, while the ‘Pro’ is excellent for both styles of brewing.

The case for pour over is confirmed by the particle distribution; there are only few fines. That’s usually not the case with espresso grinders.

Since, the basic Jx has incremental steps, you will not be able to fine-tune your espresso shots with 100% accuracy. I have made many shots with it, and they were tasty. However, I think the grinder shines when it comes to manual brewing.

In my opinion, the standard Jx is actually more suitable for manual brewing, while the ‘Pro’ is great for both styles of brewing.

The Jx Pro is more of a pure espresso grinder because of the improved adjustment.

Grinding 20 grams of medium roast for espresso takes about 45 seconds, which is pretty solid.

The standard Jx shaves about 5 seconds off that time, but you get a more narrow range in return.


1zpresso grind size
Here’s a relatively coarse grind for pour over or French press. The consistency and lack of fines is striking.

The consistency of both Jx-grinders is amazing. I have been experiencing some extremely clean pour overs with both grinders.

They only produce a tiny amount of fines. You’ll see the drawdown time decrease a lot because of the uniform particle size when coming to this grinder from most entry-level models.

Some of my readers have been emailing me to tell me about their experiences versus other grinders they owned.

  • One of my readers told me that the Jx was a significant improvement over the popular Baratza Virtuoso.
  • Another reader, explained that the Jx was superior to the Comandante in daily use since it was faster and better built. It was also easier to hold due to a more narrow circumference.

My own experience, in terms of consistency, shows that the Jx-grinders are up there with all the famous models, such as Helor 101, Lido 3, and Comandante C40.

The flavor separation is clear, the aftertaste is long, and it’s easy to avoid bitterness.


Since I put out this review a in 2019, the market looks slightly different, so let’s go over the value proposition and alternatives with a more up-to-date perspective.

First, both the Jx and Jx Pro are still great grinders that offer some of the best value for money on the market, however, it’s worth looking at the alternatives.

J Max

Only a bit more expensive than the Jx Pro. It has a big external adjustment mechanism with an even more granular resolution. It also offers a magnetic catch cup, a slightly different burr, and a few small improvements. Check out my review here.

K Max

One of the new top models from 1Zpresso and my personal choice for the best all-around manual grinder on the market. Superb performance for both pour over and espresso. Great UX and design. Check out the review here.

Comandante C40

I have spent more time with the Comandante C40 since doing my original review. It’s a grinder that is similar to Jx in many ways, although a lot more expensive. However, the Comandante does have a delightful and crisp aftertaste, which has earned it quite a reputation in the specialty coffee community. There’s no doubt that the C40 is a good grinder, but it also has downsides compared to the cheaper Jx. Check out my full review here

The updated Jx (left) also has a better handle design and a wider grip zone.


In my opinion this grinder is one of the best deals (if not the best) you can make when it comes to specialty coffee at the moment.

The Jx-grinders are faster than most – if not all – of their rivals.

The design is not only attractive but also highly functional.

The grounds are very uniform and can be used for espresso and pour over.

In my opinion, the Jx-series set a new standard for manual grinders – especially when it comes to price-to-quality ratio.

There are  only a couple of small downsides I can think of:

  • It might not be the most suitable option for people with small hands and/or low grip strength
  • The standard Jx has the reverse-order adjustment dial (though it might change with future upgrades).

However, The standard Jx is 2-3 times cheaper than many rivals, such as the Comandante and Helor 101, while running circles around them in some areas. At the current price, it’s just a no-brainer. Frankly, I think it’s almost too cheap. 

100 percent manual espresso with the hand grinder and espresso maker
An all-manual espresso shot by the Jx Pro and the Flair Espresso maker

Jx Pro or standard Jx?

While my brain says that you should go for the Pro, my heart is still with the standard Jx for the following reasons:

  • It’s cheaper
  • It’s lighter
  • It’s faster
  • It’s easier to disassemble for cleaning

If you’re mainly brewing pour over or Aeropress, you’ll be happy with this grinder.

However, if you’re specifically looking for an espresso grinder or a more luxurious all-rounder, then there’s the J-Max grinder. It’s only a fraction more expensive than the “Pro”, but with that fantastic external adjustment ring and a convenient magnetic catch cup.

I’d pick it over the Jx Pro unless you have a good reason.

However, if you’re on a budget and only able to afford one grinder, then the basic Jx will be able to serve you just fine. Yes, you might have to play a little bit with dose size and tamp pressure when you dial in the espresso, but honestly, it’s not that bad.

I’ll update my current grinder recommendation and tell most people with “normal” coffee needs go for the Jx as long as the market looks like it does today. It’s that good.

➡️  Check the Price on Amazon

➡️ 1Zpresso Official Store (International Orders)

Update: I have gotten quite a few PM’s and emails about the Jx series, so just wanted to share a few here in case you’re still on the fence.  


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Asser Christensen

Hello, and welcome! I'm the editor & founder of this site.
I have been a coffee geek since I started home roasting more than a decade ago. Since then, coffee has taken me on countless adventures: From ancient coffee ceremonies in Ethiopia to the volcanos of Sumatra.
My background is in journalism, and today I'm also a licensed Q Grader under the Coffee Quality Institute.