by luca on Sun May 20, 2007 12:21 am
I have had at least a brief play with most of the grinders that you have mentioned, so hopefully I can help out. Seeing as this is home-barista.com and you haven't specified a use, I'm going to presume that you want to use one of these as the ultimate home grinder.
Compak K10 WBC
Grinds fairly quickly and well. Looks terrible with the doser cover off. Grind adjustment mechanism is the same as the mazzer, but there are no springs supporting the collar. Instead, there is a little bolt that locks in place to keep it locked in. Doser sweeps fairly clean.
Rio Conico
I think that this is a robur. Plenty has been written about roburs. I would very happily have a robur at home if (a) there were no problems with the size, (b) money weren't an issue and (c) my bench could support the weight. Note that many of the new mazzer grinders will not run unless the safety switch is held down, either by the tab in the hopper or by jamming something in there to defeat the safety feature. Naturally, I take no responsibility if you take the latter course and something bad happens!
K30
Relatively fast and fairly clean after a number of shots. Very good portafilter holder. However, the grind comes out very clumpy, the exit chute seems to be fairly long, the timers are probably much less useful in the home environment than in the commercial environment and the stepped adjustment sometimes leaves a bit to be desired. You would be better off looking into the K30 Vario version, which, as I understand it, has a stepless adjustment mechanism and no timers.
Brasilia MC/Brasilia Competition
I think that this is a rebranded Gino Rossi grinder. I used the GR flat burr grinders a bit and absolutely hated them for their messiness, stepped adjustment, crappy looks and what seemed to be bad build quality. However, I'm forced to admit that the conical grinder is pretty good. It is a very different beast from the RR45, which comes through in the fact that it costs a fair bit more. I list these grinders together because I'm pretty sure that they really only differ in looks and in the doser or lack thereof. I would probably avoid the MC grinder at home. The fit and finish is less than pretty and there is an irritating magnet mechanism that means that it won't grind unless the doser lid is in place.
The doserless version that I have at work looks a bit cobbled together, but it's mostly stainless steel, so it looks a bit more serious, particularly given that it is relatively tall. We nicknamed them "the terminator." The grind adjustment mechanism is another "floating collar" like the mazzer mechanism, except that there is a bolt that locks the collar in place. When released, it is very easy to adjust between whatever grind you want. When locked in, the burr carrier is held firmly in place. Grind adjustment is easier and seems to be more sensitive than other grinders, so I'm grudgingly forced to admit that it is my favourite adjustment mechanism so far. Ours has a tamping stand built into the front, which is very handy. The spout leaves a lot to be desired, with a fair bit of mess, but I'm not sure how reflective of these grinders my comments are, because I think that our spout might not be standard. I heard a rumor that there is a new spout design; this would be worthwhile following up on. The grinds tray is a tiny little plastic dealio that sits on top of the foot of the grinder and really doesn't do a great job.
As for this whole "bigger is better" thing, I go by the theory that the grinder that produces the better cup is better. Again, I have to grudgingly admit that this grinder produces a very good cup. The pours seem to last longer than the flat burrs before going blonde and the resultant espresso is quite thick and rich. This is something that seems to be common to many of the conical burr grinders and I simply haven't done a head-to-head to say whether or not this stands up above the rest of them, but my gut feeling is that, at the very least, it is on par. Small burrs whizzing around quickly seem to be touted as the end of life as we know it. This is probably true for a commercial situation where you are pumping out a million coffees in a row, but seems a bit far fetched when you're only making a few coffees. At work I use it for guest blends and such. The coffee is never warm to the touch. We also have one that we use as a cupping grinder and the difference between that and the (admittedly relatively old) deli grinder that we had is quite pronounced. If this grinder were cleaner it would probably be my number one choice for a home grinder.
Azkoyen Capriccio
This grinder is usually set up to grind one dose and have it sitting in the doser. You insert your PF and the dose drops in. I'm not sure if it can be set up for grind on demand. We had one sitting around to see if we could use it to save some coffee given that the cupping room is relatively low volume and I think that everyone gradually drifted over to a mazzer mini in preference.
Mazzer Kony
Certainly a little slow, but that's relative to other cafe grinders. I think that it's about on par with a super jolly, although I have never timed it. Mazzer's fit and finish strikes me as a cut above the rest. I heard someone a while ago saying that there is some hack to make the burrs spin faster ... you could probably figure something out if you're an electrician ;P The height of the doser on the robur and the kony makes them more pleasant to work on than the super jolly/mini, etc. Something that doesn't often seem mentioned.
The other grinders to take a look at would be the casadio instantaneo and the new elektra grinder that Mark Prince raved about on CG.
Cheers,
Luca