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Looking for advice buying a coffee grinder

I mainly want to get a coffee grinder because beans have a longer shelf life and are cheaper. If I also get better coffee, that's a bonus! (Basically, I'm not looking for a premium option)

What is something I should pay attention to when buying a grinder. I see people mention "flat burr" grinders all the time. Is that something important?

A few years ago I bought a cheap terrible manual coffee grinder off Amazon. It took 5-10mins to grind my coffee. The grounds where too course and my hands hurt. Is the experience better with higher quality manual grinders? At the moment, I'm not a huge fan of manual grinders because of this experience and am leaning towards buying an electrical one.

What makes a coffee grinder better than others? What is the difference between premium and budget options?

55 comments
  • Depends on what you're looking for. Do you want drip? Espresso? French press? Manual ? Electric? What's your budget?

    For cheap/low quality electric grinders, most of them are blade grinders: they chop up the beans in very rough sizes, take forever, sound like they're gonna explode and make terrible coffee. Don't bother, they're shit.

    Burr grinders come in 2 main "cutting technologies", conical and flat. Conicals are mostly found on manual grinders, entry level electrics and some medium to high end ones. Flats are much more common on the medium to high end range because they tend to need much more torque and therefore powerful motors. As for the differences between the topologies, it mostly comes down to particle size distribution and the effects it has. Conicals tend to emphasize texture (think thick, syrupy espresso), flats tend to emphasize clarity (flavors tend to be more easily to discern). But they exist in a continuum and burr shape alone is definitely not the only factor.

    As for actual recommendations, take a look at James Hoffman's and Lance Hedrick's channels on youtube, they have a lot of incredible advice on all kinds of grinders, among other coffee equipment. Be warned though, it's a very deep rabbit hole :D

    My main grinder is a DF64/G-Iota (~400€), and is an absolute workhorse. It's a mid-range grinder that can be very easily modded to rival grinders more than twice its price, takes standard 64mm flat burrs and can be upgraded with super expensive SSP burrs. I love it. I think the current generation corrected many flaws I had to mod out of mine.

    My travel grinder is a conical manual 1-ZPresso J-Max (~150€) that's so quick it can grind at espresso range at almost 1g/s, with excellent results.

    • Thank you for explaining. This is exactly what I was struggling to understand with coffee grinders. They appear to do the same and massively vary in price but now it makes some sense.

      • Also, for the price, you gain a lot of fit and finish and sometimes features, convenience and/or workflow improvements. Good midrange products should focus exclusively on grind quality, even if it means lack of features or a rougher workflow.

  • Manual grinders aren't bad, unless you go for the cheap ones. For example, my Comandante grinder has a steel conical burr, but most of the cheaper ones come with ceramic. The thing is, the thing's sharp, I could actually cut myself if I wasn't careful during cleaning, opposed to the ceramic burrs that are pretty blunt (from what I've heard, never had one). That makes grinding coffee a breeze (maybe 20-30secs for ~13grams for a cup of coffee), even on finer settings, also it introduces less dust, as it doesn't crush the beans but cuts them into fine bits. There are many models of manual grinders that come with great burrs, some of are of the Chinese make if price is an issue (1zpresso for example).

    Flat burrs are an electric grinder thing. The mechanics of grinding with those is a little different than with conical ones, but the result is pretty much the same. Electric grinders can come with both conical or flat burrs. I've got an absolute overkill of a grinder meant for commercial use, bought used for around $300. The thing is a beast, takes less than 5secs for ~20g of coffee. I wouldn't suggest you get one (Mazzer Super Jolly FYI), just because of its size, but anything with that kind of build quality is likely gonna last you a literal lifetime. There are some more reasonably sized consumer electric grinders though, I heard Wilfa Svart is decent, some other might be fine as well.

  • The grinding mechanism is important, because what you're looking for is consistency: the grounds should optimally be the same granularity. Flat burr grinders ensure this. I have a less expensive KitchenAid burr grinder that works just fine; they don't mave the model I have, anymore, but this seems like the current iteration.

    • Apart from the type of grinding mechanism, what is the difference between budget and premium grinders? Is it build quality or is there some other component which makes them better?

      Eg. I found a cheap Melitta 1019-01 going for 15$ second hand. Im pretty sure it also has a flat burr grinder. I'm happy to pay the extra cost if I know where the money is going.

      • Yes, build quality. Ignoring the outer case, overall design appeal, etc. -- the inner guts are either built well, or they're not.

        When you grind something between two pieces of metal, if the pieces of metal can wiggle or bend or move, you end up with inconsistent coffee grinds. Big boulders, tiny fines, and everything in between.

        If the metal parts are rigid and uniformly spaced from the factory, then you enter the territory of nicely ground coffee. There are fewer outliers, and most of the grinds are of similar size.

        This all translates into coffee that's easier to brew because the water flows through it easier, and coffee that tastes better. The big boulders will be under extracted (sour), and the fine particles will be over extracted (bitter). The stuff in between will taste good, but the sour and bitter stuff might "ruin" it.

        The Baratza Encore has been a go-to recommendation for years, and if you're on a bit of a budget that's what I would get. You absolutely get what you pay for with coffee grinders, so if you're flush I would skip the Encore and get something 3x the price. "Buy once, cry once" as they say.

      • I am NOT a coffee specialist / snob, but with working from home we wanted to upgrade the old dripper and got that from Melitta, as well as the molino grinder. Both great deals at like under 50% price of new mind you.

        We're happy, the grinder works just fine for me, I don't bother changing any settings since the first setup and I'm happy with any stuff I put through there, though I probably couldn't tell you the difference.

        I did see the difference going from pre-ground to freshly grinding in the morning, especially when we were ordering special beans from a local roaster we'd get them from the previous day roast and yeah I could tell the difference a bit. But if you're just looking for something to grind you coffee and don't care about the bells and whistles then a cheap burr one from Melitta has served us well!

      • One factor that I don't think I've seen anyone mention is that better grinders will have better motors that can run slowly but still break beans down with high torque. The cheaper grinders have faster motors at a lower torque, so they rely on high speed impact to generate the force necessary. That translates to much louder, and much more broken bits of beans ( fines)

      • Well, as with anything, there are a lot of things that factor into price. Grinders are not special in that regard. You could pay more for brand name; for where it's made (US, Germany, Japan vs China, Vietnam, Mexico); more options, like more granular controls or automation; better quality materials, like better, quieter, or longer-life motors and plates; design aesthetics; glass and metals vs plastics; whatever. Some of these could affect grind consistency, and many won't. I honestly don't know how you'd tell outside of reviews on coffee-related sites. In general, I'd say anything made in Japan is probably still a safe bet; although most quality grinder companies seem to be Italian, there are still fewer sketchy companies in Japan than anywhere else.

        I've never heard of Melita, but I'm not exactly an expert. Companies have long known giving their company a name similar to a name that sounds live it comes from a country with a reputation for quality it a field will increase sales. Melita might sound Japanese, but be actually made in China, or you might hear an French-sounding name used by a cheap American wine maker. Just review the company, see where it's made, see if you can find reviews.

        Incidentally, tyere are excellent quality Chinese companies, but few that are alse cheap. This is true for any country; you get what you pay for. I have a machined aluminum, high-power laser made in China. It is very high quality; it was not inexpensive. So if your $15 grinder is refurbished, or lightly used, and it's far more expensive new, then sure. Why not? It's not much of a risk at that cost. But if that's the cost new, then hard no. I'd not risk money on any grinder less than $70 new, and $100 if you can stretch that. There's only so little quality materials cost. Like I said, refurbished is a different matter, and can bring the cost down.

        I will add a caution about used grinders, though. The nature of grinders is such that it's easy to use a grinder in such a way as to damage the grinding plates. You never want metal-on-metal grinding, for obvious reasons, and most burr grinders will let you set the grind so that the plates are touching. If the previous owner misused the grinder, you could get a damaged one and not be able to tell unless you take it apart and inspect at the plates. If the company did a refurbish, they probably checked it (you'd hope). Do not accept Amazon refurished; they test products function and superficially clean them, and little more. Fine for maybe a Wifi router, but I wouldn't accept an Amazon-refurbished grinder.

  • The cheapest electric grinder you should get is Baratza Encore. That's pretty much it. Options open if you double your price budget (which is a huge ask and.not reasonable for many, don't worry)

    The cheapest hand grinders you should get (unless you really have no budget) are the 1zpresso Q2 (single cups of coffee) or a Timemore C3 for pourovers. They are at least the quality of the baratza encore if not slightly better without modifications to the baratza. It literally takes me 30 seconds to grind through 16g of beans. It is night and day from those cheap shitty amazon grinder and also affordable.

    Just don't buy from amazon. Amazon sucks, in unethical, puts smaller companies out of business not because it is better, but because it uses its immense wealth to directly copy products but make them worse and sell them at a large loss while losing a ton of money until the smaller company folds then jack up their prices. They also fund illegal Union busting, barely pay even a fraction of their taxes, and use their software side of the company to lock in people and other companies. Not to mention their workers' rights and OSHA safety violations of which are many. They are just untouchable because they have a Disney-tier legal division.

  • i obtained a coffee grinder from IKEA 2-3 years ago. Somehow i feel like i shoplifted it even though I paid it for it... they were out of coffee grinders so I surreptitiously removed the "I be IKEA" tags and made them look it up at checkout. My fuckin ex broke the glass french press, just like my loser brother did to my double wall German one 10 years ago. I'm over it. I do not have to grind for 5-10 minutes or harm myself to make coffee.

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