A Comparison of Premium Hand Grinders for Coffee and Espresso

The ascension of the grinder to its status as the most crucial piece of brewing gear is well deserved. More than anything else the grinder has the potential to make, or severely limit the flavor quality of brewed coffee. It’s natural then for this movement to extend across new territory -- the world of mobile brewing. The hand grinder, once considered a compromise for convenience sake, has been reinvented to contend with some of the best electric home grinders on the market. Whether you’re sitting around a campfire, summiting a mountain, riding economy class, recharging in the office break room, or trying to keep it quiet in the kitchen at 6:00 AM, hand grinders have made it possible to brew excellent coffee, anywhere.

Over the last few years, several premium hand grinders have been introduced to the market. These grinders share a few defining characteristics, including precision-cut steel burrs, a secure center shaft riding on bearings, and an overall build quality that promises durability and a long lifetime. These features are considered standard for a quality hand grinder and, in essence, are all that’s needed for a uniform grind. That being said, the rather straight-forward requirements can make it somewhat difficult to determine which grinders stand in front of the rest. But there’s good news -- we’ve done the work for you. We've sourced several of the most popular premium hand grinders on the market and put them to the test, highlighting the strengths and weaknesses of each. Features are what truly distinguish these grinders from one another and this blog is intended to help you find the grinder with features most relevant to your needs.

Five hand coffee grinders side by side

Orphan Espresso Lido 3 - $185.00

Prices here reflect current listings as of January, 2020.

Possibly the most well-known of all premium hand grinders, the Lido was one of the first to gain the attention of the specialty coffee community. Over time, Orphan Espresso developed a few iterations, evolving the Lido 1 from a very basic looking tool into the highly refined Lido 3.

Fit and Finish

The Lido 3 is comprised of aluminum, stainless steel, silicone, and BPA-free plastics. Unlike previous versions of the Lido, the Lido 3 is made to be very lightweight relative to its size. The slim Aeropress-like hopper, made of a BPA-free medical grade plastic, is easy to hold for long periods of time and is semi transparent, allowing you to see the beans as they fall into the burrs. The grounds container, made of RTP PermaStat ABS plastic, is a highly durable static-resistant BPA-free plastic engineered to be tough, lightweight, and to keep grounds from sticking to the inside. The Lido 3 is the biggest of the hand grinders, at 13.5" in height, about 3" in diameter at the base, and 2" in diameter at the hopper. It weighs about 2.4 lbs, making it the heaviest hand grinder as well.

Grind Adjustment

The Lido features a stepless grind adjustment with dual threaded rings. Loosen the top ring, then twist the bottom ring to select a grind size. Tighten the top ring back down to lock in your setting. Two blue lines serve as reference points for recalling settings. The top line, painted on the body of the grinder, remains stationary. The bottom blue line on the bottom grind adjustment ring indicates the distance from the stationary line.

The Lido E and E-T, which are iterations geared towards espresso grinding, feature a finer thread pitch in the adjustment ring. A lateral inch of movement of the Lido 3’s adjustment ring will produce a more substantial change in grind size than the same movement of the Lido E or E-T’s adjustment ring. This makes it easier to dial in the grinder for espresso, where tiny changes are sometimes necessary.

  • 48mm hardened steel burrs mean quick grinding. Combined with a 70 g capacity hopper the Lido 3 is well fit for those who brew several cups at once.
  • The Lido features a folding handle and includes a neoprene carrying case, making it easy to stow and bring along on trips.
  • A full grind range, covering everything from Turkish to a 10 cup Chemex, means the Lido 3 can be used for any brew method.
  • Highest capacity grounds bin of the hand grinders we carry. Perfect for people who want to brew a large Chemex, french press, or auto-drip.
  • Although the reference lines are sufficient to recall grind settings with fair precision, the process of unlocking the top ring, adjusting the bottom ring, then tightening the top ring, is a bit difficult and more involved than other grinders.
  • The Lido has a relatively short handle and tall body. Especially when grinding for espresso, the grinder can begin to wobble because the bottom half of the grinder is unstabilized by your hand. Sometimes it’s more comfortable to place the grinder between your knees while grinding.

Helor 101 - $259

It looks to be straight out of Cupertino, and sort of is. The Helor is a stunning hand grinder crafted from 6000 Series aluminium -- the same aluminum used for the iPhone 6. As elegant as it is precise, the Helor is comprised of the highest quality materials and offers uniformity of grind on par with the best hand grinders.

Fit and Finish

The Helor features a single-piece body cut out of a block of aluminum. The body, both roller bearing holders, and the outer burr holders are a seamless, solitary chunk of aluminum. The wooden handle provides plenty of surface to hold while grinding, and the arm of the handle seems to be the perfect length to provide leverage for even the finest settings. The body and grounds chamber hold about 30-40 g of coffee. The diameter is approximately 2.1", height is 6.6", and weight is 1.28 lbs. Disassembly is extremely straight forward, thanks to the Helor's clean and minimalist design.

Grind Adjustment

The Helor’s three point grind adjustment knob, located on the underside of the body, is familiar to those who’ve used the Porlex or Hario Mini Mill. 11 circles and one solid dot are etched onto the underside of the center burr. A small hole in one of the adjustment knob’s arms serves as a reference to the solid dot on the burr.

  • Perhaps the most unique feature of the Helor is its inclusion of dual 38 mm burr sets. The first set, known as “Conventional burrs” are cut specifically for filter coffee grinding. These burrs, made from Martensitic Steel, shine at coarser grinds -- like what would be necessary for single-cup to full capacity Chemex brews or French Press. The second set included with the Helor are the “Contemporary Burrs”, which are the same burr set found in the Feld2. The contemporary burrs excel with finer grinds -- like espresso or V60 grinds -- and offer a more uniform grind at finer settings than the conventional burr set. The option of installing different burrs for different brewing applications gives the Helor an advantage over other grinders because its optimal range is more broad.
  • Excellent materials and construction, promising an extremely long lifetime.
  • Elegant, minimalist, and modern aesthetic.
  • Tied for the quietest grinder on our list.
  • Compared to most other options, the Helor is very expensive. This is partly due to the dual burr sets.
  • Although the grinder is highly durable, the aluminum body is very easily scratched. The outer body will display the grinder’s history of bumps and falls.
  • Because it’s so smooth, the outer body can get a bit slippery during longer grinding sessions where sweat may develop on your palms.

Knock Aergrind - $159.99

The Aergrind may just be the ultimate grinder for the frugal traveler. Designed to fit inside an Aeropress plunger, the Aergrind is the smallest grinder in our lineup and makes for the perfect addition to your hiking or camping gear, or even a home brewing setup. Beyond being designed with the Aeropress in mind, it also performs best when grinding for that or similar hybrid brewing methods such as the Delter Press. If that is your favorite way to brew, then this economical grinder offers similar grind quality to other premium models for a fraction of the price.

Fit and Finish

The Aergrind features a 38mm ceramic-coated steel burr set, familiar to those who’ve used the Feldgrind or Feld2. The Aergrind stands only 14.5cm high and has a diameter of 4.7cm. A simple removable steel handle with a plastic knob fits over the center shaft against a thin black plastic lid. The Aergrind also features dual bearing mounts and an anodized unibody milled from aluminum. Like Knock’s other grinders, the diameter of the Aergrind feels perfect for the hand and grinding is smooth.

Grind Adjustment

Like Knock’s other models, stepless adjustments to grind size are made at the top of the grinder. Hold the lid in place and rotate the handle to adjust grind size. A numerical reference from 1-12 is imprinted on the top of lid. Each number has two dots between them, for total of 36 reference points. A small notch near the base of the handle serves as an indicator for the current setting. Because the Aergrind requires no disassembly when adjusting grind size, changes can be made faster than you can say, “Made By Knock”.

  • Fits inside the chamber of the Aeropress’s plunger.
  • Similar grind quality to the Feld2 at a lower price.
  • Super fast grind adjustment.
  • The handle and rubber sleeve do not fit inside an Aeropress with the grinder.
  • Center burr has a very small amount of lateral play.
  • The grounds container can sometimes slide out of place while grinding because your hand must grip part of it.
  • Fines can be an issue for pour over brewing methods, limiting it flexibility as an all purpose hand grinder.

Knock Feld2 - Discontinued

Knock’s newest iteration of the popular Feldgrind is a refined tool that every coffee enthusiast needs to have. The Feld2 is one of the most comfortable and practically designed hand grinders we’ve ever used. Big enough to grind for a full Chemex at home, yet small enough to stow away in any bag. The Feld2 is one of the ultimate gadgets for home brewers and travelers alike.

Fit and Finish

Similar to the Aergrind, the Feld2 features 38mm ceramic coated steel burrs, dual bearings, a rubber sleeve, and a milled aluminum unibody with black anodization. The grinder stands 8.5” high, 1.97” in diameter, and a depth of 6.25” with the handle. The Feld2 incorporates a fixed steel handle with an aluminium knob which is permanently attached to the lid. The two slots in the underside of the lid must be aligned with two separate parts of the grinder’s center shaft in order to lock down. Once in place the handle is extremely stable. The grinder can hold over 30g of beans and has a very large grounds container. The stability of the handle combined with the Feld2’s perfect diameter and handle length make for buttery smooth grinding.

Grind Adjustment

The Feld2 is adjustable via the lid. Hold the lid in one place and rotate the handle to adjust grind size. Like other Knock grinders the Feld2 is stepless and features 12 numerical reference points on the lid. An arrow at the base of the handle serves as a point of reference for the current grind setting. The grinder requires no disassembly to adjust grind size so any desired changes can be made on the fly.

  • Very sturdy handle makes for smooth grinding.
  • Quick grind adjustment without disassembly.
  • In our opinion, the Feld2 has a perfect body diameter and knob at the end of the handle for a comfortable grip.
  • The double locking lid can be difficult to put in place. Two slots must line up perfectly with two different parts of the center shaft. This takes some getting used to.

Comandante C40 MKIII - $250

The Comandante Mk.III hails from Germany, where some of the best equipment used in specialty coffee shops is made. So, understandably, the expectations for this grinder were high. Although it’s rumored some of the first production models had performance issues, the latest grinders are well built and offer excellent grind quality. In fact, this is a standout, balanced hand grinder that we recommend as your best all around option. At its core the Comandante is a stylish, versatile grinder that is a pleasure to use.

Fit and Finish

The Comandante sports a stainless steel body wrapped in a thin wood veneer treated with a natural wax oil, high-nitrogen martensitic steel burrs (which are highly resistant to pitting), an oak wood handle sourced from the Black Forest, stainless steel bearings, crank and axle, a BPA-free internal plastic frame, a glass grounds container, and a plastic lid attached to the end of the handle. The Comandante has a diameter of about 2.4", a height of 6.3", and a weight of 1.63 lbs. Its hopper and grounds container can hold about 40-45 g of coffee.

Grind Adjustment

The Comandante is one of the few premium hand grinders with stepped grind adjustment. A plastic knob on the underside of the unit controls grind size in ‘clicks’. Part of the benefit of stepped grinding is that it allows the user to replicate the exact same setting over and over. By zeroing out the burrs then counting clicks, specific settings can be referenced.

  • Transparent lid and grounds container shows what’s left and what’s been ground.
  • Full range of grind sizes.
  • Unique wood veneer styling.
  • Stepped adjustment is sufficient for small changes to espresso.
  • Great grinder to use for Turkish coffee.
  • Glass grounds container.
  • Consists of many plastic parts.
  • Slightly louder grinding volume than others on this list.

Kinu M47 - $344.99

The M47 in early 2019 is one of the most robust portable hand grinders available. Constructed primarily of steel parts, it is solid to hold (and noticeably heavy) with little slop or play in the parts. The grinding action is incredibly smooth and its 47 mm conical steel burrs make short work of your bean dose even at espresso-fine settings. Its weight and its open-top design make it less convenient for travel, but overall this is a superb hand grinder. For those interested in a Kinu grinder they can pack up and go with more easily than the others, take a look at the Traveler model. Kinu has also recently introduced the Phoenix and the Simplicity as great options for those who would like to save money on the M47 by swapping out some of the peripheral components with plastic counterparts.

Fit and Finish

Kinu has clearly put a great deal of thought and care into the design of the M47, and while none of the other grinders in this comparison feel cheap, it does evoke a greater feeling of durability and stability than some. The M47 is primarily made of stainless steel - only the handle pommel and some other trim parts are made of black ABS plastic. Inside is a set of 47 mm “Black Fusion” coated conical steel burrs, four steel bearings, and internal steel supports. The hopper portion can hold 30-40 grams of whole beans on average, though we have been able to squeeze in 50 with certain denser coffees. On the novel side of things, the catch cup uses a set of magnets to attach directly to the ring burr, so it can be removed with a solid tug but stays fixed in place while grinding. The grinder measures 8.25” high, 2.75” deep, and 7.8” wide with the handle attached (the handle easily unscrews for storage, but no holster is provided with the grinder). At 2.3 lbs, it is a heavy grinder compared to others.

Grind Adjustment

Grind adjustment is micro-stepped: each click on the adjustment wheel corresponds to 0.01 mm of burr travel, which is more than suitable for dialing in espresso. The adjustment wheel is clearly marked with numbers and dashes, each registering a click thanks to the detents, and there are 50 clicks per revolution. The top screw must be loosened slightly for easier grind adjustment, but otherwise it is simple and clear to make adjustments and record your desired settings to return to later.

  • Exceptional build quality and smooth grind.
  • Great grind performance for espresso and manual brewing.
  • Generous manufacturer warranty (5 years).
  • Fast, simple grind adjustment with actual reference for burr distance (0.01 mm per click)
  • Weight and bulk are less travel friendly.
  • Coarse grind settings yield more fines. Our 600 mL Kalita Wave brews tasted somewhat muddy.
  • Some users found the brushed steel hard to grip, and the ABS thumb stopper (which prevents the grinder rotating in the hand) to be uncomfortable.
  • Some users have reported that magnets in the catch cup may come loose or dislodge completely.
  • Quite expensive compared to others with similar grind performance.

In conclusion:

From size to style, price and application -- there are several things to consider when buying a hand grinder. Our approach here at Prima is to curate a condensed selection of equipment through first-hand experience and judgement of quality, value, and features, then present the best to you. Although each of these grinders produces largely similar uniformity of grind (so similar we didn’t feel it was worth comparing), there are plenty of distinguishing features. There’s a grinder for everyone, and we hope this comparison guide was useful in choosing a hand grinder most relevant to your brewing needs.

Last Updated: January 2020

Disqus - noscript

what about peugot coffee grinders?

I'm not believing anything specific about aluminum, it's only been a suspected issue with little to no objective evidence, as I said I ended up with it and love it. My adamant objection is the mindset that we can keep going on with our current levels of fossil fuel use. Meanwhile verification of their large scale destruction is abundant. It's an indisputable fact that they are one of the single greatest causes of environmental destruction on many levels. How long can we continue consuming and destroying at our current scale? One generation or three? In a short 150 years we've used up more than half of the world's oil. What will the world look like if we insist on burning it all up. With the population headed to 11 billion how long will it take? You're objecting to my attitude because you can't fathom a world without fossil fueled individual transportation. If there's a high horse it's your head in the sand belief that we're justified to obliterate our civilization a generation or two down the road because it's inconvenient to find alternatives to driving cars. That you don't see how we could discontinue our current trajectory doesn't mean we can't, and it doesn't mean we shouldn't work toward it with all our ability.

His morning commute is more acceptable than your attitude. I suppose you think we can simply teleport to work. Is that it? Get out of here. Talk sense, or shut up. No one cares about the very short moral high-horse you think you're on you sanctimonious glib nonsensical pretentious little b%tch. Now, the much deserved verbal spanking aside, there is a thing called toxic dose. The amount of aluminum that can possibly negatively affect your body to the point of toxicity is absolutely negligible. If you don't actually understand chemistry, don't make attempts at sciencing other people. Now go back to being the female dog that you are.

Ridiculous prices for these things. I cannot see $550 in thatbcoffee grinder.

A lot of favorable comments on Kinu, and also Prima Coffee has reviewed the grinder in isolation. Maybe a good moment to update the comparison to include Kinu? And while at it: what about Rok Grinder?

They already have the Kruve. All they have to do is use it and measure how the grinders perform. Nobody has to pay for anything. I only pointed out the more technical lab equipment as an option because it's really not that expensive. Regardless of which method they use to measure, the resulting article would probably draw a huge amount of attention and spur a lot of grinder sales.

If you believe your morning commute is acceptable your beliefs have zero credibility with me. While you and countless profiteers discount the issue of pollution in the environment and toxins in our products, in the US 600,000 people die every year from cancer. That's the second leading cause of death next to heart disease. That's fatalities, many times more than that number of lives are irrevocably altered. I'm not anywhere near saying specifically that aluminum is dangerous (I ended up purchasing the grinder), what I am saying is that we do better watching and minimizing what we get exposed to. I am saying we are exposing ourselves to far too many toxins and that across the board we should do what we can to reduce our exposure. The morning commute is far beyond my reference of what's acceptable. Fossil fuel pollution is one of the biggest sources of environmental pollution for the whole planet.

You digest more toxins in the air you breath during your morning commute than any amount of aluminum could infuse into your food.

If someone supports this kind of analysis or experiment, maybe Prima can do that... By support, what I mean is paying for all the tools and stuff.

So do you use Comandante?

Thanks for a review of hand grinders, Ryan. I found that thinner body grinders are harder to operate. Thinner grinders, such as Knock or even Herlor, require firmer grip, where rotation and resistance varied. When compared to Comandante, for example, the grinding was very easy and a great pleasure.

I avoid aluminum in contact with my food, and have for a long time. I thought it was common knowledge.

Instead of repeatedly getting defensive and telling people why the article is fine, why not update the article to address the concerns? There's not a single person who has commented "Great comparison, thanks! This is exactly what I needed!" Whether you feel the reviews are inconsistent or unfair is irrelevant when your readers feel they are. Update them. Include more details. Rephrase what people say is ambiguous or contradictory or inconsistent. If nothing else, there are some new options on the market and prices have changed, so there's plenty to address in an update. For a specific example, your dedicated reviews for the three Kinu grinders mention that they're muddy at coarser settings. This seems like exactly the kind of thing that a lot of people want to see in a comparison like this. In this comparison guide, you say they're similar, but after reading through the all of the dedicated manual grinder reviews I could find on your site, it seems the Kinu is the only one that got singled out for its flaws at coarser settings. Since I expect almost everyone using a manual grinder is using them for pourover and immersion brewing methods, the range from "on the fine side of medium" to "super chunky" would seem most relevant and this would make the Kinu less competitive. Instead of expensive laser particle analysis, use one of your Kruve sifters. (Side note: I actually wish they'd allowed multiple trays to be stackable so you see a distribution across all 15 filter sizes but that's a different topic. (Side side note: A few hundred dollars will you get a set of stackable laboratory sifter screens and a vibrating "shaker machine" if you really want to ensure consistency.)) A sifting screen isn't perfect but it does give you a consistent way to determine what percentage of grounds fall outside of a median range. I've read some comments that suggest about 10% is standard for grinders of this type and quality but measuring it and confirming the numbers should satisfy your readers. It also helps reduce both actual bias and perceived bias. (e.g. Do the Kinus actually produce more fines than similar grinders or was that a subjective call? If they do, at what grind sizes is performance better/worse?)

Has anyone used the Apollo Grinder how was it compare to Commandante and Kinu?

Is there any difference in the speed and ease of grinding, comparing Lido ET with C40?

Which type of anode you're using? Type II or III?

Hi Hendrik. This is partly because the models and prices have changed since the original writing. At the time of the initial publication, the Feldgrind (now discontinued, but available used on secondary markets) went for around $150 US and performed just as well as the Feld2 and Aergrind do today. Now, the Feld2 does retail for a bit higher, but as those previous grinders are still around and available to purchase, we feel our evaluation stands.

How odd. Your main reason to diss the Comandante is "Performance is comparable to grinders that are quite a bit less $." The only grinder here that is "quite a bit less" is the Aergrind. But then why does the Feld - with results that are identical, but which costs almost twice as much - not get the same thumbs down? Why indeed are not all other grinders presented dumped for that same reason? Their "performance" is very comparable, too and apart from the said Aergrind their prices are so similar to be of little relevance. I'm really very interested in a comparo such as this, but if it ends in a result that begs explanation, we're back to square one, aren't we.

It seems that the relevant weight here is the weight (more precisely the moment of inertia, so weight @ radius) of the rotating bit---the burrs, handle, hand and arm of the grinder. I don't see any advantage to weight in the grinder's body. Explain?

Just a note to let you all know - no aluminum surfaces in our grinders are uncoated, by either EPD coating or anodization.

It will be when they make more...soon. They have been building world network of dealers, etc. Still working on website too. Most who have one got prior run grinders just thru emailing them and sending paypal. These all sold out thru word of mouth..no website, no advertising, etc. But... The helor or feldgrind 2 isnt available either currently...

Thanks for the recommendation. Is the Kind m47 available in the US? I've looked but haven't been able to find any info on where to purchase one.

If you get a kinu m47, you will not be dissapointed. Others may work as well......once aligned. But the kinu is head and shoulders above the rest in quality of design and construction, and detail. Parts are made with such tight tolerances there is no alignment that can be made.....its perfect, spec runout of .001 on burr, and repeatable after dissassembly. Comes apart with no tools, etc. For travelling, maybe a lighter model. But definitely get a good grinder. I have kinu at home, and cheaper ceramic burr at work. The cheap one takes 3x as long to grind,way more fines, doesnt taste nearly as good.

Hi, I am looking for a recommendation from this list. I am looking for a top hand grinder for Kalita Wave, cupping, and the occasional aero press. From your reviews, it seems like the Helo would suit me the best. Thoughts?

With same size burrs badically, my kinu m47 is about 2-3 x as fast as my cheap ceramic burr grinder. It grinds easier, and way faster. You can feel it grab and eat the beans with power. I wouldnt contemplate making coffee for more than 1 person with the ceramic burr i have. Id make for a group with the kinu.

Thank's for the advice!

Because of the cutting pattern of the burrs, none of the grinders we've reviewed here are reversible. You can still use them left handed, but you have to turn them in the same direction, that being clockwise.

What about the Zassenhaus grinders? They aren't aluminum, right?

Being a lefty, would any of these grinders be used right to left (conter-clockwise)?

The weight is asset grinding lightly roasted coffee.... The good handle length combined with heavy weight let it cruise thru light roasts without struggling or kickback. It eats it up.

I have a Kinu M47 for a while Its what every grinder should be Rock solid, numerical micro adjustments, easy, accurate and repeateable, and fast I only use it for pourover, and I doubt there is much difference in grind consistency, fines compared to other high quality grinders for that use. But the high quality of construction, precision, and total lack of issues...make it worthwhile. Its simple, very few parts, very high tolerances. rock solid, It goes thru beans fast. What more could you want? And if you get tired of coffee it would make a decent small boat anchor..its not lightweight

Hey, AJDT. Thanks for the input! We hope you're enjoying that Helor as much as we did. I'd like to address some of your comments about the Comandante and why we wrote this the way we did: This project is as much a subjective evaluation as it is an objective comparison so, yes -- the article does favor the other 3 grinders on the list and the reasons are all listed. We thought the Comandante did a great job and we think it's a great grinder, but the bottom line is that it's hard to justify the price when grinders like the Lido and Feldgrind offer extremely similar results for far less cash. Or you could spend a little extra and get two burr sets (as with the Helor). We feel that the extra burr set (and therefore broader optimal grind-uniformity range) is enough to justify the extra cost for the Helor. In regards to the Comandante handle, ours squeaked a ton while grinding and there were differing opinions whether the size and shape of it was an attribute or a drawback. People have different preferences for handle size based on what's comfortable for them, though. Thanks again for chiming in with these thoughts!

I'm surprised the knob/handle didn't make it onto the highlights list. When I got my MK3 and my Helor for my own head to head, this was one of the biggest differentiators and truly makes the MK3 a pleasure to use. Of the 4 grinders in the article I have owned the Comandante and the Helor and I agree with your statement that there is no discernible difference in their grind performance. To your reply above; Certainly if "Performance comparable to grinders over $100 less" applies to the Comandante's drawbacks it should also apply to the Helor's which is listed as $10 more expensive than the MK3. True, it comes with two burr sets, but how many folks need or want that, and that is the only option offered by Prima. I know the single burr options can be ordered direct from the mfr website for less, but then the MK3 can be ordered from England for about $210 delivered as well. I have to agree with several other posters here that this article seems slanted somewhat against the Comandante. Whether this was intentional or not, it's worth noting that the MK3 is the only grinder in the list not sold by Prima. (Full disclosure: I bought my Helor from Prima and I'm very satisfied with the product and the transaction and I wouldn't hesitate to buy from Prima again.)

Hi Raf. Sorry you feel we left out a bit on the Comandante, we felt it was a fair heads-up review to summarize what to expect from the product and what makes it distinct from the others in the test. Our feeling is that, to most users, something like the nitrogen content of the steel making process will make little difference to their user experience, whereas some may wonder why they're receiving two burr sets with their grinder (as with the Helor) or why their burrs are black (with the Feldgrind). As such, we left out the finer details on metallurgy here. Regarding performance, we've explained in our comment above that our results simply do not match your own. We did not find much measurable distinction in performance between the grinders in our test, though we certainly didn't go out of the way to get some laser particle analysis done. Our intent here was simply to perform real world tests, taste the results, and gauge how these grinders compare. What we found was that these four products create remarkably similar coffees in the cup - both as brewed coffee and espresso - and the chief differences come down to price, style, and design. For some users, the Feldgrind may be too small to be comfortable, so the Helor or Comandante may be preferable. Others may wish to have the larger hopper capacity found in the Lido. But where dialing in and taste were concerned, we did not find many meaningful differences after weeks of testing. As for the use of aluminum, we're simply not in any position to weigh in. Nobody at Prima is a qualified physician or medical researcher, so it would be irresponsible for us to give advice. We leave that up to the consumer to research and decide on their own.

I tryed a few if the mentioned ones and I love the Feldgrind! So smooth to grind, very good grind quality and good looking. But for me, a handgrinder is for travelling or when everybody is asleep at home. Don't buy a handgrinder for your daily espresso. Daily use is ok for filtercoffee. But the finer you grind, the harder it gets, with all grinders.

Certainly, Beta! All of the options here will be faster and easier to grind than a Porlex or other similarly sized ceramic burr grinder. Often, ceramic burrs aren't all that sharp, at least compared to milled and hardened steel. That extra sharpness goes a long way to making the act of grinding much easier. The burrs are a bit larger in these models as well, which also makes things a bit faster and easier, the beans move more quickly through those larger primary cutting surfaces. We didn't do any head to head testing with ceramic burr grinders, but from past experience we feel we can safely say you'll see a distinct increase in grinding speed with these fellas.

We haven't yet, hopefully someday soon!

Any thoughts on grinding speed and ease? Would you say these are significantly faster and take less effort than a Porlex or similar?

According to some tests between some of these there is actually a large difference in particle size and uniformity. And in that Comandante wins. I also feel your review of the other grinders is quite fair and detailed and the Comandante review is very rushed and informs of notging to be honest. Whereas your review of the Halor is quite detailed. Eg: Nitro Blades? Why did you not explain this in detail like you described all he other burrs? From testing the Lido 1 & 2 I found it to provide a terible grind and and infact uses the same cheap burrs as the Baratza Encore... unless the 3 has changed them. The Fieldgrind is a decent grinder but when going finer does not work very well. Also the burrs start to rub so this is not good engineering. Same happens with the Lido in fact. I tested the Comandante rigorously and found that from Tirkish to Coarse it is consistent and precise. As to the other coment about the toxins of Aluminium there is a lot of research about this from Scuba Diving. Hi exposure to aluminium is bad. So holding it, drinking it etc... is toxic. Hence the use of steel in medical grade/food grade products.

Hi! I am using the Comandante grinders since the first release of MK1, it's almost four years now. I met in person the Comandante Team last year during the World of Coffee in Dublin, since then we share the information about grinding, parts etc. We also together organized the First Polish Comandante Championship two weeks ago in my cafe. So I can say that the CEO Mr Bernd Braune and rest of the Team are my coffee friends. I have the opportunity to play with new prototypes and I know what materials are used in the production.

Hi @krzysztofbarabosz:disqus by googling your name i see youve tested the grinder a bit, but cant see anything about you being affiliated with them or not. Where did you hear that the risk of Aluminum Citrate was the factor that had Comandante make their grinder with stainless over aluminum?

I have been a happy owner of the Comandante C40MK3 for almost a year and I must say that – apart from the excellent grind quality – one of the best aspects of it is the wooded oak knob on the handle. You can feel that it must have taken them quite some iteration in the design process because its form is just fantastic. It's smooth against the palm and provides perfect grip without exercising pressure or stress on the hand. A pleasure to use.

Have you guys tried the Kinu M47?

Merfy, Thanks for your comment! I agree -- uniformity of grind is one of the most important considerations when choosing a grinder. We matched grind sizes and put all 4 grinders against each other in a series of brewing tests and found that all 4 extracted within a .5% EXT variance. In general the taste between all 4 grinders was virtually indistinguishable, and we feel that features and aesthetic are a more important consideration because of that. When I said "Performance comparable to grinders over $100 less" I was somewhat vaguely referring to the other grinders on the list, like the Feldgrind.

"each of these grinders produces largely similar uniformity of grind (so similar we didn’t feel it was worth comparing)" That's literally the most important thing to cover :( Also, it can't be that similar if one of them has "Performance comparable to grinders over $100 less."

Just saying, but Comandante is the only grinder in which producers didn't used alluminium, Why? "The potential health threat and problem is Aluminium Citrat. It is able to cross the blood brain barrier. A soluble salt (combination of Aluminium and Citric Acid). Citric acid is in the roasted coffee bean. Light roasts of high density specialty coffee has fairly high levels of citric acid. Aluminum and its salts being a potential health threat as potent Neurotoxin and may be behind Alzheimer, ALS etc...." You can read about this problem here: SAGE-Hindawi Access to Research; International Journal of Alzheimer’s Disease; Volume 2011, Article ID 276393, 17 pages Enjoy :)

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