MorneDJ Senior Member Joined: 10 Dec 2013 Posts: 7 Location: South Africa. Pretoria Expertise: I like coffee
Posted Thu Jan 2, 2014, 6:41am Subject: La Cimbali Jnr - Used - Not grinding
I just bought a new Brewtus machine, and after alot of reading went for the La Cimbali Jnr (used) over the Vario (new) and Mazzer Mini (used). Being the holiday season I only got it the 30th December and never got to test it till yesterday. So, after a massive clean (inside and outside) I added beans and ... nothing. While the motor is turning nice and silently it is only spinning the beans around in the "hopper". I removed the hopper (and plan to modify as I will only be grinding a weighed out portion on demand - home use, perhaps 2 times per day) to look at the burrs and they do not have a nice sharp "edge", yet it cannot be considered as dull, as there is still something of that edge left. When the motor spins the bottom burr turns counter-clockwise that seems wrong (based on the direction of the chute and the shape of the burrs).
Since this is the holiday season with most places closed (cannot get the company that sold me this, they only open the 6th) I am rather frustrated, but trying to source as much information that I can. For now, can anyone tell me:
What is the correct direction the motor should be turning - counter- or clockwise.
Could dull burrs be the reason that nothing is ground ... nothing at all.
Should I just get another grinder or should I sort this out.
Rather frustrated, as, after spending almost $2,000 I still have nothing to use to pull a nice shot (and my beans is getting older every day ... roasted last saturday, new roaster)
Posted Thu Jan 2, 2014, 9:57am Subject: Re: La Cimbali Jnr - Used - Not grinding
As a preliminary, the Cimbali Junior and Junior Max-Hybrid (as well as the Max-Hybrid and Al-Nico) grinders are unsuitable for single dose grinding because they "popcorn" like crazy. I suppose you can mickey mouse some way to operate them without the hopper, but it won't be good. If single dosing is really important to you, get something else.
As another preliminary, you should be aware that Cimbali grinders trap beans and bean fragments in the throat collar and between the hopper and deck which can then go rancid and taint subsequent grinds. The hopper needs to be removed at least once a month, the deck and collar cleaned; and with the grinder reassembled you might as well clean it with Grindz or instant rice. That's a LOT of maintenance compared to most grinders.
On the other hand, the La Cimbali Junior Max Hybrid is truly Titan class for grind quality and the easiest and most precise grinder to dial in I've ever used.
Assuming you want to keep the Cimbali, and grinds are leaving the hopper and going into the grind chamber:
After reassembling your grinder, did you tighten the burrs down until touching; reassemble to the point where you can start the grinder so you can hear the burrs whine?
If so, did you back the burrs off so they weren't touching, using the knob; and re-zero the dial?
If not, try tightening the burrs down and see if you can get them to touch. You may have to reset the dial to do so.
If you can't get the burrs to touch, we'll have to take it from there.
If you can bet the burrs to touch, have readjusted them and the dial so that "zero" is either touching or barely touching, to what number is your dial set?
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