J-Ultra Manual Coffee Grinder Iron Gray, Conical Burr, Foldable Handle, Magnet Catch Cup Capacity 40g, Numerical Adjustable Finely Setting, Faster Grinding Efficiency Ideal for Espresso

I cannot say just how much I enjoy this hand grinder. I have three other brands of hand grinder, all more budget friendly, and the quality between those and this J-ultra is night and day. Let us start off by talking about the build quality. The bearings and springs are clean and well machined. The grinder comes apart easily for cleaning and is a breeze to calibrate afterward. Said bearings are silent when you turn the crank, without beans, and the action is smooth once you do add your coffee beans. The clicks the dial makes are smooth but reassuring. The crank handle is well machined, and the locking mechanism is easy to use. The catch cup magnets are great. Strong enough to not detach accidentally in use but not so much that it hard to take off when you are ready to make your coffee. And finally, the grip is great and feels like it will not slip after a few months of use like I have had happen with other grinders. Moving on to functionality I will say that it is easy to crank this with even lighter roasted beans. Or as much as can be expected from a hand grinder and a light roast coffee at an espresso setting but I digress. While it is easy to crank it is still fast, under 45 seconds for me, on most coffees with an 18 gram dose in 49/51/54mm baskets and a little longer on 58 as I have to grind finer (about 55 seconds). The dial is quite nice and having 8 microns of adjustment is insane. I almost always change settings 3-4 clicks at a time if I am dialing in as I know that I can pull a shot at 30 seconds on one setting and one click may give me a 29 second shot. It is so granular that I might even get another 30 second shot (this could even come down to puck prep or temperature differences in your process). As such this allows you to dial in by taste a lot easier. Say you pull a shot at your desired time (I like 28-32 seconds) but something tastes just a little astringent or a little sour, one click could change the flavor ever so slightly without changing your time or yield by a noticeable amount. This amount of granularity is also nice with manual machines like levers (or picopresso or robot etc). It just makes pulling a shot that is "almost there" that much easier. It is hard to explain but if you run a manual machine, you know that they can be finicky. Flavor profile wise, I find I like this better than some of my electric grinders. It is very good at pulling more traditional shots (think thick and syrupy body) but it produces a lot of fines, so it is great with longer 4:1+ ratios as well as it doesn't encourage channeling like some of my other bur sets do. I do find that even if it is good at pulling traditional shots it does also highlight acidity in those shots. I tend to get good body but more up front acidity than astringency. That is, unless you push it too fine on too light of a roast. No ristrettos on ultra-light filter roast but that isn't a pleasant experience for me anyway. Now, the one thing that I miss about having a screw on catch cup is that it fit in my portafilter/dosing ring better. This cup has a very large diameter. But that is me nit picking. And the grinder, with the handle on, will tip over if you leave it standing up so remove the handle! I can't speak to longevity as I've only put about 3 kilos of coffee through it at this point, but I have other 1zpresso products that haven't given me any issues. If you think this grinder is for you, it is. I wouldn't hesitate.

It's a really high quality manual grinder. It's solid, well-made, and it feels like a precision device. It provides repeatable, consistent grind. Adjustment setting and indication is ingenuous. Retention is typically 0.1g or less. Cleaning with the included blower and brushes is easy and quick. Taste profile is typical of traditional conical burr. With medium or more roast, it really brings out the chocolate test in the espresso. For lighter roast, the profile is an orchestra of complex taste as expected from a high quality conical.

Pictures don't do justice to this amazing piece of industrial art. It's beautiful to look at and to hold, and feels very solid. The magnetic catch cup contributes to the feeling of luxury. The folding handle is great: folded, it allows for safer storage (stands up nicely on the counter), and unfolded, it's long enough that grinding coffee doesn't feel strenuous. The wooden knob at the end of the handle fits nicely in the hand. The coffee is ground to a uniform consistency, and the grinding adjustments allow for very fine control. In conjunction with a Bambino Plus espresso maker, I've made espressos that rival the best you can get in a coffee shop.

I got my first espresso machine not too long ago and I thought I could get away with just buying coffee from coffee shops and having them pre-grind the beans for me. It worked for like, the first day. After that all my espresso shots were terrible. Turns out, the grounds were to fine. I got incredibly frustrated and went to talk to a barista at my local coffee shop and he told me I needed to get a coffee grinder. I was skeptical at first cause I didn't believe it made a difference. Especially not when the grinders I was finding were $100-$200 after I just spent over $400 to get my espresso machine. But I got this one anyways cause it had amazing reviews and its a highly recommended brand. Let me just say... it does make a difference. Ever since I started grinding my own beans with this grinder, my espresso shots have been BEAUTIFUL and delicious. The grinder is easy to use and does its job well. I love how precise you can be with the level of the grinds. The quality is amazing, I truly believe this grinder could last me years. Yes, its pricey, but I think it is 10000% worth its price tag. If you're on the fence, BUY IT, your coffee is gonna taste so much better for it. This is a great investment into your journey of making coffee at home!

This is the most beautifully made machine. It’s such a gorgeous object and the grind is terrific. I have one caveat, and it’s a big one, I cannot hold this machine and turn it at the same time. I don’t understand how anyone other than a body builder or super fit individual can use it. I love the result and the aesthetics so much and I really wanted to keep it. But it takes me between 5 and 10 minutes to grind enough beans for a cup of coffee. I’m a normally active reasonably fit person, but operating this grinder is so time consuming that I just can’t see how to fit it into my routine. I think I will sadly have to admit defeat and return it. But if you’re super fit and love your coffee, and can make this work for you, I’m jealous as this is an amazing and beautifully made machine.

Very smooth with a great flavor profile for espresso. Very premium materials and easy to adjust, clean, and use.

I have the K ultra but I was trying to grind for turkish coffee. Absolutely impossible on the K ultra. I couldnt even turn the crank. So i decided to pull the trigger on the J ultra as a turkish coffee grinder and it worked wonders. I figured since its designed to grind fine, itd be a little easier to grind. And not only could i turn the crank, i could turn the crank with relative ease and grind the coffee fairly quickly. Now it is still a workout, but my guess is this is probably the best fine hand grinder you can get. Turkish coffee is even finer than espresso. I did use the grip and it was easy to use.

This could be the best espresso grinder out there for travel. Using it with Wacaco Picopresso and loving the resulting cups. Built like a tank. Interesting premium material choices. Magnetic catch cup works like a charm. Ergonomics and work flow is top notch. Best part is the grind adjustment system. It’s a well thought out design and works efficiently. Adjustment clicks are pure ASMR. Minor adjustments are possible for perfect dial in. Grind chamber can be dissembled and cleaned without any fuss. Cons: Heavy, because it is built like a tank. Though the handle, grip and engineering of this grinder is near perfect, hand grinding do need some effort and strength.

Calidad increíble, estuche hermoso y buenos y prácticos accesorios. Funciona de maravilla

wonderful product. Works perfectly with precision

Me gusto el molino en sus acabados y presentación. Lo uso para expreso y muele rápido y con se puede encontrar sin complicaciones el tipo de molienda que prefieras. Le doy cuatro estrellas por que ahora con el uso continuo espero que sea duradero. Lo recomiendo

I love the premium experience of esresso from a fine grind. Its amazing