- 1Zpresso J Manual Coffee Grinder Silver Capacity 35g with Assembly Stainless Steel Conical Burr - Numerical Internal Adjustable Setting

After wanting to get more into coffee, doing a lot of research on the topic resulted in the conclusion that buying a grinder to freshly grind coffee beans was one of the biggest upgrades. So, after a ton more research, I had actually settled on the KINGrinder K6, with the consensus being that it was the best bang for the buck. I had also heard that one of the biggest drawbacks of it was the disassembly, that it was very difficult to disassemble and put back together, for cleaning purposes. Since I never owned a grinder before (manual or electronic), I didn't really have any context for what this would mean, hence I took a shot on it. Once it arrived, I was actually quite impressed by it (again, not really having proper context), everything seemed to be extremely well built. But, knowing my personality, I started to look into the disassembly/reassembly issue that I had heard about. After reading manuals, watching videos, and spending a decent amount of (semi-wasted) time learning about all of this, I tried to get the grinder disassembled, and failed badly. No matter what I tried, I couldn't get the pin holding the entire assembly together to come out, of course I was trying to also be delicate with everything as I didn't want to damage anything and risk not being able to return the item if it came to that. After spending enough wasted time and getting frustrated, I decided that it needed to go back, and in that regard I was glad I never got it disassembled, because I realized that it would have been very likely I wouldn't have been able to properly reassemble it afterwards. So, back to the drawing board with more research. Ultimately, I decided to just spend the extra money to buy a 1Zpresso, and I picked the J Manual model because it seemed to be the best bang for the buck one for pourover that 1Zpresso has. The only thing I dislike about 1Zpresso grinders is the very confusing naming and changing of their lineup, for instance the J Manual was actually the Jx from previously with very minor upgrades. When the grinder arrived, it was actually even nicer than the KINGrinder K6 in overall feel, build quality, and impression. The first thing I tried was the disassembly and reassembly, which as I had already researched, was decently easy. Note that it wasn't perfect, once you do a disassembly and reassembly, if you want the number dial to line up with the "zero" of the grinder, it is incredibly difficult to get right. However, if you just use the numbers as a reference point and don't care that zero is zero, then it's not a big deal. I have now since used the grinder almost daily for about a month and a half, and the grinder continues to be a pleasure to use. Grinding is seemingly very easy, satisfying, and foolproof. Everything is machined very precisely, and the entire unit is very solid. Overall, I feel that the item is worth the money paid, which for me is a very satisfying feel.

Wanted a high quality manual burr grinder for mainly single serve pour over coffee. I already have a high quality electric grinder dedicated for my expresso machine, which I indulge for the weekends. I told my wife the 1Zpresso was $140 dollars and was considered to be "entry level" for starter high quality coffee grinders in this category. She thought I was nuts, but she knows I like my coffee. Actually, the grinder is so well engineered and constructed, $140 is not a bad deal considering it will most likely last a lifetime. The grind time is very short especially if you are grinding a single serve of 20 grams. Very smooth efficient operation. Very easy to clean, but make sure you read the instructions carefully or watch some YT videos. META Coffee does a slow but detailed video on the differences between the J and Jx. This is basically the newer version of the older JX model with some mods made to the grind setting and the threads on the coffee catch cup. Frankly the grind settings are easy to set but can be confusing since some folks are obsessed with setting the indicator to 0 zero after disassembly and cleaning. Would highly recommend. Not sure why you would spend more than $200 for a manual coffee grinder unless you want to flex in front of your buddies.

Got this grinder as an upgrade from a cheaper one, which didn't have the shaft or burr properly anchored, such that the cone could float around inside the ring, producing a wildly inconsistent grind. So far, the 1zpresso grinder totally solves that problem. The shaft and burr are very stable, and the bearings make it effortless to turn and grind with. Build quality overall feels very high, and I cannot see any corners that were cut. There is one thing about the grinder, though, that confuses me because it seems like such an obvious oversight. The way the grind settings are indexed doesn't make sense. If you look at the dial, it's set such that a finer grind is a higher number, and a coarser grind is a lower number. This wouldn't be an issue if the dial only had one rotation - coarse is low numbers, fine is high, no big deal. Just like American Wire Gauges. But the trouble comes when you have to go through multiple rotations of the dial. See, you're supposed to count your grind settings by first tightening it up all the way (which should hopefully line up at zero), then count the number of clicks and revolutions up from there to the desired setting. (See this reference from the manufacturer: https://1zpresso.coffee/wp-content/uploads/2020/09/JX-Grind-Setting-Reference-20200909.jpg). So, if I wanted to adjust the grind for a Moka pot, I would first tighten it down all the way to zero, then count on the dial 9,8,7,...3,2,1,0 (one full rotation), then again 9,8,7...3,2,1,0. (2 full rotations). A much more sensible way to do this would be to have the numbers going in the opposite direction on the dial, such that you could count up from zero (each full rotation being a count of 10). Like 0,1,2,3...8,9,10 (one full rotation), 11,12...18,19,20 (two full rotations). The best way I've figured out to count the settings (so far) was to back out the dial all the way, until it comes off. I got 8 full rotations, then a few more clicks. So, I called that point "0", and counted up from there, putting my tightest point at "80". So, to count my settings, I first tighten up to "80", then dial down to 40 or 50 or wherever inbetween to get my desired grind. Let me reiterate: this grinder is great, and it is worth the money. I've giving it 5 stars for a reason; it's already really improved my morning brew. But this is a very simple, and very easy to fix UI problem, IMO. Just reverse the numbers on the dial, and suddenly the grinder becomes much more intuitive to use!

Do you enjoy coffee often enough that you are willing to grind your own beans? Yea that’s me. Are you one of those people that have been using a cheap 10$ food processor to grind up your beans and have been just fine for the past couple years? Yea that’s me too, guilty as charged. Are you just not convinced with dishing out what seems to be a ludicrous amount of money just to manually grind beans? Yea, trust me, I get it. Well if you answered yes to any of these questions, know that I too, once were in your shoes. I love coffee, but not enough so that I am easily willing to shell out thousands, let alone hundreds of dollars on coffee equipment. That being said, this coffee grinder is absolutely phenomenal! I cannot believe how much my coffee experience has changed for the better. It feels incredibly well built and premium to the touch. The way this thing grinds is like a well oiled machine, I personally do not struggle in any way. If you know what a good socket wrench feels like, then you are in for a treat. It’s crazy to think that there are grinders that are twice this price. It already offers a fantastic user experience at this price point. So if you are one of those people who are looking to get a manual coffee grinder, but you are conflicted about getting the “better” and “more expensive” and “higher quality” version. I promise you won’t be disappointed starting here. There are a wide array of options to grind your beans in all kinds of preferred likeness, very easy cleaning with a brush (no washing here), fantastic build quality, and ease of use. Some cons that I have noticed that are not really a big deal to me, but for some of you, may be deal breakers. 1. Again, I personally do not have this issue, but someone I know has small hands. You may not feel so comfortable trying to use it, if this is the case. 2. Often enough, I find my self needing to go through two grind sessions, simply because I prefer more coffee in my cup or am making coffee for others as well. Which again, is not really a big deal, especially since it’s so easy to use. But for those who are looking to just grind once and be done with it, or grind large quantities. Probably won’t find it here. As I would imagine that it would be difficult to design this thing to grind more in volume and keep it at a size that is comfortable to handle for most people.

After using the 1Zpresso J for about three months as my daily driver for both pour-over and the occasional espresso attempt, I can confidently say this grinder delivers on its reputation for quality, though it comes with some practical considerations that aren't immediately obvious from the product description. The most impressive aspect is the grind consistency - the 48mm steel burrs produce remarkably uniform particles that translate directly into better-tasting coffee. I've done side-by-side comparisons with pre-ground coffee and even my old blade grinder, and the difference is immediately noticeable in the cup. The internal adjustment system with 30 clicks per rotation gives you plenty of precision, though I found it takes some experimentation to find your sweet spots for different brewing methods. For reference, I typically use around click 15-18 for pour-over and have to go much finer (around 8-10 clicks) for espresso, though getting espresso dialed in perfectly requires patience with the 25-micron step size. The build quality is genuinely impressive - this thing feels like it could last decades with proper care. The stainless steel construction is substantial without being overly heavy, and the foldable handle is a nice touch for storage, though I wish it locked more securely in place during grinding. Here's what I wasn't prepared for: the effort required varies dramatically based on grind size and bean type. For pour-over, grinding 20-25 grams takes about 45-60 seconds with moderate effort - totally manageable for daily use. However, grinding for espresso is significantly more work, taking 60-90 seconds with considerably more arm effort, especially with harder, lighter roasted beans. If you have any wrist or shoulder issues, this might be a concern for daily espresso use. The grinder can also get "stuck" if you over-tighten the adjustment dial, which happened to me twice during the first month until I learned the proper technique. What sets this grinder apart from cheaper alternatives is the attention to detail and user experience refinements that become apparent over time. The magnetic catch cup works well and stays securely attached, though you do lose about 0.5-1 gram of coffee that clings to the burr chamber - I use the included brush to sweep this out after each session. Cleaning is straightforward with tool-free disassembly, and I deep clean it about once a month without any issues. Static can be a problem with certain beans, but a tiny spritz of water on the beans before grinding mostly eliminates this. For the price point, this grinder punches well above its weight class and easily competes with electric grinders costing twice as much. Just be realistic about the physical effort required, especially if you're planning to use it for espresso daily or have multiple people who'll be using it regularly.

I don't typically write reviews but I feel I must for this. I will say I am not that experienced with hand grinders this being my second one. I go back and forth between Espresso and Pour Over. I have a fairly high end setup for espresso. An Expobar Office and paired with a Baratza Vario. Going back and forth between those 2 is problematic. Once you get a grinder dialed in to a given bean it is best to leave it. In my opinion anyway. So I decided to get a cheap manual grinder. One that is usually in any top manual grinder articles. I don't feel the need to name it. I was quite happy with it for pour over. it was fairly quick I thought. It would take about 2 minutes to grind a 30 gram dose. I experimented with it for espresso and it totally failed. Took close to 4 minutes to grind an 18 gram dose on its finest setting. I only got 2 bars. So I accepted it for what it was. A grinder that could be used for brews that require more coarseness than espresso. Flash forward a year or so and I decided to do research on what is currently out there. The 1Zpresso piqued my interest based on a best grinders article I read as well as reviews both here and elsewhere. I was totally amazed. For starters it is very stylish to me and feels like a premium product. But what really amazed me was the performance. I was able to grind my usual 30 gram dose in about 30 seconds. And the grind was certainly more consistent than my other. For my next test I attempted espresso with it using one of the recommended settings for espresso. It was not easy and required a fair amount of effort and took me nearly 2 minutes. As soon as I tamped it I could tell that it was very fine and actually thought it would choke my machine. I was right. I Could not believe that a $130 hand grinder could choke out a prosumer grade machine. As with any grinder a given setting might work with one bean but not another. So I made an adjustment I felt would get me closer. My second grind was less than a minute and was much easier to do. It was still a tad too fine. I was at 10 bars and it took about 50 seconds to pull the shot. One more small adjustment and I was there. Got my 9 bars I was looking for and it was even easier to grind. It took me 48 seconds to grind the 18 gram dose at the proper setting. To me that is amazing. I have read that if espresso is your main thing then you should get the pro model due to it having a greater range of settings which allows you to dial in the grind more accurately. I can't vouch for that since I have not used the pro but I felt I was able to dial my bean in with the settings available. My only caveat is that the hopper is small. I can only grind about 20 grams at a time although the distribution chamber can hold up 35 depending on the bean. But it is very easy to quickly reload. It is not a big enough caveat for me to rate it anything less than 5 stars. I can't imagine anyone being disappointed in this grinder

Great product. I am able to get a perfect espresso grind for my bambino machine using this grinder. After I am done grinding, I give it a couple taps on the counter to knock all the loose grounds down into the chamber. If you frequently need to change your grind setting it could be a bit of a headache to take the bottom off to do it, but for me it's not an issue at all. Overall the product feels very solid and I have consistently used it for over a year with 0 issues or concerns. My wife also has no issues operating the grinder.

It is a very hard sell in today's economy to convince someone to buy a coffee grinder for 100+ dollars, especially when the job of grinding coffee isn't exactly all that complicated. However, after doing a ton of research and from first hand experience I can say that a quality grinder like this actually makes a huge difference in the taste of your coffee. I've noticed that I really taste more of the actual flavor of the coffee (when it is branded a specific "flavor) and overall use less cream (i don't much use sugar) as the coffee is much less bitter. Now onto this specific grinder: First, everything in this bad boy is metal. There is no plastic on it aside from the little cover for the top that keep the beans inside and the rubber textured bit on the outside. Aside from that, it is fully metal, so I expect this thing to last quite a while. the included brush is pretty similar to a makeup brush, and it makes it pretty easy to brush out any leftover coffee (this will happen if you're doing an extremely fine grind for espresso or espresso-adjacent drinks) and the level of precision you can get this grinder to is crazy. Also, if you've used other hand crank grinders and think this might be a chore to grind, you will be surprised as to how easy it actually is to use. It takes very little effort to grind coffee even at the extremely fine settings. All in all, if you're looking for a quality grinder that can get you closer to the quality of a 300+ dollar electric and don't mind the 20-40 seconds it takes to grind a bit of coffee in the morning, this will save you quite a lot of money and deliver you some delicious coffee that rivals any fast coffee place like Starbucks.