The Iberital MC2 domestic burr coffee grinder is a modern classic. With it’s efficient Burrs and Cunill motor.
The MC2 remains unbeaten in this price bracket and has done for the last 15 years. The grinder is more than capable of grinding fine espresso coffee consistently.
First of all the MC2 is available in Doser and Doser less versions. The Doser less is also known as the Auto. This being because it also has a timer. The timer enables the user to set an approximate weight of coffee to be ground and dispatched at a time. For this reason domestic users nearly always choose the MC2 Auto.
Also available as mentioned is the Doser version. This version is ideal to be used as a second grinder. Out and about you may come across one being used for Decaff. Or for a lesser used blend in a decent coffee shop or bar. This burr coffee grinder runs at a low rpm. Therefore it make an ideal decaff machine.
Below we see an image of the Iberital MC2 coffee grinder chute. As opposed to a doser usually seen on manual grinders such as the Iberital MC2 Manual.
MC2 burr coffee grinder – How it works.
The portafilter from the coffee machine is placed into the clip below the chute. At the back of the clip is a button.
When pressed the button activates the grinders timer. The mechanism then begins to work. It grinds the coffee beans from the hopper at the top of the machine. This continues for the amount of time it is set for, until the timer ends.
When set for the correct length of time the timer on the grinder will push out approximately 7 – 14 Grams of coffee.
Iberital MC2 Auto Coffee Grinder – Instructions for use.
On the lower right hand side of the machine you can see the timer adjuster knob, to alter the length of time it operates for, it looks a bit like a fuse holder and will run between around 7 to 13 seconds.
Looking from the front of the burr coffee grinder, just below the hopper, on the right. There is a knob which allows you to adjust the grade of the grind from coarse to fine.
The trick is to get the correct grade of coffee running for the correct length of time. In order to dispense 7 or 14 Grams, 7 for a single shot and 14 for a double.
The best way to gauge this is to use two 2 oz shot glasses. These can be found in the online shop.
If you want to make a double shot, run 14 Grams of coffee into a double basket.
Do this in a double filter holder (with a twin spout). Then pouring into two 2oz shot glasses, filling them both to the 1oz line in 22 to 25 seconds.
If the water is running too fast through the coffee. For instance getting 2oz of coffee in 15 seconds. Turn the adjuster knob clockwise, to make it finer.
If coffee is taking forever to come out, then turn the knob anti clockwise. As the grinds are too fine to let the coffee through quick enough. It is possible to slow the rate of coffee by tamping harder. However it is always best to tamp how you would naturally. In terms of pressure.
A good tamper can make all the difference in coffee making. Read the Information on coffee tamping here.
So too slow equals too fine, too fast equals too coarse.
Bricks in a bucket
Think of it like this, put bricks in a bucket and pour water over the bricks, the water goes straight to the bottom of the bucket without delay. Fill a bucket with sand and pour water over it, the water will take much longer to get to the bottom.
This may take a fair amount of tweaking to get it right. But the effort is worth it. The MC2 Burr coffee grinder has a very intricate worm drive adjuster. So to start with run the grinder and time the shot. Without making any adjustments at all.
If the grind is too coarse and the coffee goes through too quickly. Start by adjusting the coarseness of the grind by turning the knob 25 x 180 degree turns at a time. Clockwise to make the grind finer, then run another shot and time it again.
As you get close to where you want to be going for 10 turns or so at a time.
Once the coarseness of the ground coffee is about right, weigh the amount of coffee it dispenses and adjust the timer until you are happy. Fine tune the coarseness if necessary.
By adjusting the grinder using the timed method there is no way you should be able to get to the point where the blades are touching. As long before you reach that point you will ‘choke’ the machine. That is your coffee will be so fine you will not be able to get any water through it at all.
Remember to keep the MC2 clean Read the article on cleaning coffee grinders.
Last but not least – Please note well:
Do not adjust the grinder so fine that the blades are touching, you will damage the blades and if you try to run the machine whilst they are touching you will probably blow the motor, please ignore any advice you may come across that advise to the contrary, only an idiot will do that. Motors and blades damaged due to this will NOT be covered by the warranty as this is classed as abuse.