What is the grinding scale standard of the bean grinder?-how to adjust the scale of the Italian bean mill

What is the grinding scale standard of the bean grinder?-how to adjust the scale of the Italian bean mill

Experiment 1, determine the amount of 16g powder, adjust the bean mill scale 3.2 (take 900N as an example, 3.2 as the initial scale), and press the powder under heavy pressure. The result is: 27 seconds 40ml. So it can be seen that when the amount of powder and the strength of pressing powder are determined, the flow rate is too small and the powder is fine.

Experiment 2, same as the above method, 16g powder quantity, adjust bean grinder scale 3.3, press powder strength heavy pressure. The result is: 25 seconds 55ml. Then it can be seen that when the amount of powder and the strength of pressing powder are determined, the flow velocity is normal and meets the standard value.

* about the scale:

Due to the difference of the machine body, the grinding degree of the same type of machine of the same brand may not be the same; therefore, we can not only look at the scale, but can calibrate the scale according to the actual powder thickness below.

* about the extraction temperature:

According to the depth of baking, the density of beans, flavor characteristics and personal preferences, the temperature can be adjusted in a wide range, generally at 88-92 ℃ as the reference point.

* about the extraction scheme:

If you need to adjust the extraction scheme, it is recommended to adjust only one variable. Because the more variables are adjusted at the same time, the more difficult it is to analyze which part of the problem lies.

1. Powder thickness

What is the scale of the XX bean grinder?

The scale is just a reference, different brands have different grinding scales, and the performance of the same model bean grinder of the same brand under the same scale is not exactly the same. it is better to understand it this way: the scale just tells you which direction is thick and which is fine. when you find a suitable powder thickness, the role of the scale will show a little bit. The premise is that only your bean grinder, and can not change the beans, the amount of powder does not change, the strength of the powder can not be changed.

Remember a little trick: when you find the right powder thickness, twist it with your hand from time to time, pinch it, feel it with your body and write it down as much as possible, so that even if you change the bean grinder, you don't have to rely solely on the scale to judge. If you pinch it with your hand, it will be significantly thicker, which can greatly improve your efficiency.