Question about Bunn Coffee Grinder

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Takes forever to grind coffee beans

I have a Bunn burr coffee grinder. To grind enough beans for a pot of coffee it takes about 8 times of turning the knob to the maximum cups (24). I've emptied the top of beans and looked for stuck beans, nothing is clogging.

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Posted on May 10, 2010

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It only grinds about 3 oz. each time i ask for 15 takes forever to get enough for a pot of coffee


no- but you should be able to adjust the grind fineness by moving the setting to make it larger

Sep 13, 2015 | Cuisinart Burr Mill Grinder

1 Answer

My super jolly mazzer grinder is switching off after only a few seconds grinding. used to grind continuously for however long i needed, now i have to turn it on 4-5 times just to get enough for one shot! ...


Most grinders, especially the larger professional models will eventually need to have the grinding wheels (set of 2) changed out. They do wear down. The grinder will struggle as the burrs on the wheel dull out. This increases the time it takes to grind coffee and puts a heavy electrical load. Burnt out switches, tripping breaker, overheating, and burnt coffee grounds on espresso size are all symptoms of a worn burr set.
It's common to find; stones, nails, jewelry, and small loose things found around coffee counters in the grinding wheels or burrs. Have a qualified operator remove all beans and hopper to check and brush out burr set. This should be done every day.
Another cause is very oily beans. Sometimes poorly roasted beans come out extremely oily which will gum up everything from the burrs, Moving parts, and electrical components. Disassembly of entire machines may be necessary.
ukeboy57

Nov 07, 2017 | Mazzer Coffee-grinder SUPER JOLLY Electric

1 Answer

Cleaning burrs of oily residue


Hi
There are many ways to clean oily residue from your burrs. You can order a grinder cleaning tablet from online stores called Grinds by Urnex. Some people use white rice but if you don't get it all out you will have rice in your coffee. You can take them apart and clean them manually but if you don't reassemble it correctly you will not get a good grind. I think the easiest way is to get some cheap light roasted beans ( doesn't matter if they are old ) but never use shiny beans because shiny beans have lots of oil.
Set the grinder to a very coarse setting, on a Rocky 7 higher that you currently use. You can turn it to a larger # any time but it has to be grinding to turn it to a lower #. Pour a cup of cleaner (beans, or rice) into the bean hopper and turn the grinder on. Grind the whole hopper through the machine. If you use grinds just a couple of #'s higher is all you need. Once you have cleaned the burrs you will need to grind some of you beans to purg the cleaning debris for the burrs and chamber. When you see no more cleaning compound you can turn the hopper back to where it was leaving the motor run. Once you get it back test with your beans.

May 12, 2011 | Rancilio (RAROCKYND) Grinder

1 Answer

When grinding coffee beans the grinder is not dropping the beans into the grinder part. I have to stay and shake or bang the grinder on counter to get the beans to fall through.


you must screw off the burr holder plate screw (in center) you will order one special screw, drill shaped, when the burrs roll it will mix and take down the coffee beans. That is solution i applied to many grinders. PS: beware the direction of burrs must be coordinated with new screw.

Feb 07, 2011 | Cuisinart Supreme Grind DBM-8 Electric...

1 Answer

My Solis Maestro takes a long time to grind and no longer grinds for espresso. How do you remove the burrs to clean them? Should they be replaces?


HI
Yes the burrs will wear out. They can be replaced. To remove the outer burr. Twist the bean hopper counterclockwise until it stops. Lift the bean hopper out. There is a cream colored ring with 2 tabs that will lift out holding the outer burr. To get the inner cone burr out is a little more difficult. We use a vice grip and grab the burr, and lock the pliers to it. Then with a quick movement clockwise on the pliers, you loosen it. Then clockwise unscrew the burr. When you install the new burr, it truns on counter clockwise until it stops. Insert the new outer burr. Push down so the tabs will lock in. Install the bean hopper into the correct slots ( 1 large tab and 1 small tab). Twist clockwise to turn on and test. Remember it must be grinding to turn to a finer grind but can be turned to a coarser grind any time.

Jan 24, 2011 | Solis Maestro Electric Burr Grinder

3 Answers

Grinder stalls constantly (motor whirring, but no grinding happening) so I shake it to get it grinding again, but the whirring/no grinding happens over and over. I have to shake the think 5 or 6 times to...


As I can see, what happens is that some coffee grains stucks in the way from the upper pot to the grinding wheel. This is not something usual, but possible if coffee grains are too big and are placed across the entry of the mill. Try cleaning more deep with some old toothbrush. Look for a clean and even surface of the duct.
Other cause might be a loosen mill hub/grinding wheel off the motor shaft, which would require dissassemble of the appliance to be repaired.

Dec 10, 2010 | Krups Burr Coffee Grinder

1 Answer

I have a bunn coffee grinder that keeps on jamming up everytime you put coffee beans in it. I took the front part off to clean it out every time it jams,but it keeps on doing the same thing. The model bunn...


It sounds as though your grind is out of adjustment. The grinder is probably set too fine. I have not worked on a G3 grinder but I would think it is like the Bunn G2. On the front knob you will find 2 small set screws and one larger adjustment screw (in the middle of the knob)
1. Set the selector knob to finest setting (Espresso or Turkish)
2. Loosen the 2 set screws about 2 turns.
3. Activate the start switch (you must activate the "bag switch" behind the chute)
4. With the grinder running, SLOWLY turn the center screw clockwise only until you hear a very slight whirring sound (this is the burrs touching).
5. Then, back off the center screw counter-clockwise about 1/8 of a turn, shut off grinder and re-tighten the set screws.
Check the grind in the "drip" setting by running a few beans through... the grounds should be about the consistency of sand. You should get a better flow through the machine with the grind adjusted properly. You may want to check the cleanliness of the hopper in the top... I have seen these dirty enough to impede the falling of the beans to the grinder.
Also, whenever you remove (for cleaning) the 2 larger screws that hold on the front "plate", be sure to put them back in evenly... kind of like one would with a wheel on a car- Finger-tight then slightly tighten each on a little at a time (back and forth) until tight.
Hope this helps.

Oct 15, 2010 | Bunn Coffee Grinder

1 Answer

Cleaned the Solis Maestro grinder and re set it to a fine espresso setting but the grind is coming out very course. What should i do?


Hi Your burr is not locked in. You need to remove the beans from the hopper. Remove the hopper. Remove the burr. Turn the grinder upside down over the trash can. Put the burr back in only make sure that the burr is down. Install the bean hopper and when you turn the bean hopper it should move the burr. Then you can adjust your grind. Make sure that the grinder is running is your going to a finer grind or you could break the grinder. You can turn it to a coarse grind any time.

Jan 12, 2010 | Solis Maestro G385 Electric Burr Grinder

1 Answer

Oily beans seem to have clogged our coffee grinder up. What can we do?


Rotate the bean hopper counter clockwise until it stops. Lift it off. Remove the outer burr with the 2 wings and clean under the burr. Clean the opening going to the chute for ground coffee(inside where the burr was).
Install the outer burr. Install the bean hopper. Rotate the bean hopper to the French press grind (coarsest) and operate the grinder. This will clean the burrs and the passages. If it starts to clog, repeat the last part to clean the burrs and passage. It must be grinding to go to a finer setting, but you can go to a coarser setting any time. Another thing. Turn the grinder upside down (empty) and rotate the bean hopper back and forth to clean the threads of the adjusting burr..

Dec 20, 2009 | Solis Maestro Electric Burr Grinder

1 Answer

My Barista Burr Coffee Grinder suddenly grinds too fine.


If it is any consolation, mine just did the same thing, now takes too long to grind and it is way to fine dispite a thorough cleaning by disassembly.

Jun 07, 2009 | Starbucks Barista Burr Grinder

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