The grinding mill is one of the main tools of a barista.
The quality of a coffee is largely determined by how it is grinded. To enjoy high quality and fresh coffee, learn how to properly set up your grinder!
The process of adjusting your grinder is by no means difficult, especially if you are familiar with its components. The blades of a grinding mill grind the coffee beans and turn them into powder. The closer the blades are to each other, the thinner the final result will be, and when pressed with a tamper, it will not allow water to pass easily, resulting in a slower extraction, balancing sweetness and acidity.
If the distance between the blades is wider, then the ground coffee will have thicker grains, which, when pressed, will not be fully compressed, so water will pass faster through, reducing the extraction time.
Properly adjusting the mill in 5 simple steps:
- Depending on the result you want (thicker or finer grain) move the controller appropriately. Make sure you have enough grain in the mill first and that the latch is open and does not prevent the grain from coming out to the blades.
- Turn on the mill for 10 seconds and discard the first grind.
- Prepare a trial dose of espresso without changing the dose.
- Evaluate the quality and rate of extraction.
- Repeat the above steps until you have the desired extraction.
What about electronic mills?
If you need to set up an electronic grinder, then you need to consider 2 variables: the dose and the grinding setting.
An electronic, dosing coffee mill grinds at a specific time to produce a specific dose and does not take weight as a factor. So, first you need to be sure that the cause of an unsatisfactory espresso is not the wrong dose of coffee you use, but the setting of the grind.
A general rule to determine if you are using the right dose is to check that the coffee in the portafilter, just after it is pressed, is about 5 to 6 millimeters below the portafilter lip. If the pressed coffee is much lower or higher than the lip, then you should change the dose your mill produces.
Increase or decrease the grind time by 0.20 to 0.30 seconds and check the new coffee dose. If it sits correctly in the portafilter, but the extraction time is too fast or too slow, then you need to change your mill setting.
As with classical mills, you should move the controller about 3 millimeters in the direction that will give you the desired result.
Then follow the 5 steps mentioned above. Keep in mind that in the dosing mills, by changing the distance between the blades, you also change the amount of coffee to be milled in the scheduled time of a dose.
Therefore, you may need to change the grind time to find the combination that works best for you.
Get the best result in your cup by choosing the right home or professional grinder that suits you!
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