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Review on ๐Ÿ”ง Mueller Ultra-Grind Conical Burr Grinder: Professional Series with Detachable PowderBlock Grinding Chamber and 40mm Hardened Gears for Easy Cleaning and Extended Lifespan by Rebecca Massey

Revainrating 1 out of 5

Updated 10/10/21 to 1 star // Updated 4/1/2021 to 5 stars

Some dust today. I know exactly what happened and I can remove the burr mechanism to see if I can put the little spring back in place. It's completely locked. So it's useless, and I'm very upset that I haven't had it for even a year; I don't use it every day; I never run it for 3 minutes (Mรผller limit before the machine shuts off 30 minutes), I grind in small batches (5-7 teaspoons of whole beans that don't even fill to the MAX line on the bean hopper) x 3 in between Leaving batches to rest so I can clean the ground bean container. He never got warm. I don't want repairs. I don't want a "parts replacement" which is Muller's only warranty. I asked a question about cleaning millstones and the guy told me his machine wasn't even a year old. I should have listened to him. Oh, and by the way, this is the second car I've bought from Muller through Revain (Revain is innocent, it's a platform, not a manufacturer). I sent the 1st back because I got a fine grind for espresso with the grinder set to 10 for a French press. IMHO the whole problem is combining thin plastic with moving metal parts. It's just that there's never a good design, there's never a good idea. Beans/Method I Use: Organic Medium Roast Ethiopian Yirgacheffe in French Press After searching everywhere for a grinder to replace the first Mueller I bought and sent back, I ordered another one. It just has all the features I wanted and nothing I don't want. The first machine gave me crushed beans with a grind of 10 instead of cutting them into chunks. Chunk is what you need for a French Press. I gave him a second chance because sometimes there are isolated cases and I was hoping that would be the case. That. The one I have now is amazing. It gives me consistent chunks, doesn't get hot, easy to clean, great and holds up well. I see many complaints about the mess left behind after sanding and it seems to generate quite a bit of static electricity when used, but after a few sessions I decided to put a piece of newspaper under the sanding machine from the tons of flyers to lay that I get. That solves that problem - when I take out the bean chamber from under the grinder, it all falls onto the newspaper, the EPZ. I use the brush on the underside of the grinder to remove loose soil and then take the parts to the bin to remove burrs. Incidentally, this also shows me that I lose far less coffee per grind than I originally thought. It seems like a lot when it's everywhere, but it really isn't. I doubt it's even worth 3 coffee beans. Pfff, no problem. Since I store ground beans in a jar, I purchased a wide-mouth can hopper (about $6) to transfer ground beans from the chamber to the jar. Another problem solved. So 5 stars. I love this machine.________________________________________________________________________________________________ It is sad to treat this machine. It's good. It's REALLY beautiful, it's heavy, it feels good, it even has a nozzle when you're making espresso so you can fill the portafilter directly. I even had fun like a nerd, cleaning it every two times I used it, watching how the burrs work and all that. Pretty quiet and easy to clean. It grinds slowly enough that the grains are not heated during grinding. What I don't like is that it just doesn't grind for a French Press. The grains I ground looked sheared, they looked like hay. I set the grind scale to 10 as indicated. He just chopped the beans. The French Press needs chunks, not scraps. As a result, my coffee was relatively flavorless, about the same as cheap commercial filter coffee from the grocery store. The next day I used the machine again and added more beans thinking maybe I should use more ground as they are processed differently but got the same result without the flavor. So I went back to my mill. More slices, tastier coffee. Same pack of beans. If you look at how the millstones work, you can see the shaft that holds the rotating millstone. I'm wondering if I have an idle machine where the shaft isn't long enough to provide the separation needed for the pieces, or if the grind selector isn't calibrated properly. One thing I noticed while cleaning the burrs is that if I hold it up to a light and turn the grind selector from 1 to 10, you can see the top burr moving away from the bottom. [I already know that you Ravenian nerd buddies aren't going to stick your fingers in the ridges while hand-twisting them. I trust you.] Maybe it just wasn't set from the factory. It's a good idea because I think if he was really properly grounded he would be a Guardian until he dies. Unfortunately I will be sending it back.

Pros
  • Consistent test results
Cons
  • Could have chosen a newer model