Grandma Lahuaoniu soaks layers? How to determine the degree of grinding of the cup test? Why does the bean grinder need to be cleaned?

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[question and answer 1]

Q: will the lines of the flower be layered and become a lump?

A: when pulling flowers, the milk foam will be delaminated, which may be because the milk and the milk foam are not mixed well! Pulling flowers is not just about mixing milk and espresso. Before that, milk and foam should be mixed together when milking.

As for how to integrate it? Do you remember how to play milk foam?

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In the beating stage, by adjusting the angle between the steam stick and the milk (not the contact point), the milk forms a [whirlpool] in the milk tank, and through the [whirlpool], the foam produced in the process is pulled and torn, and the coarse bubbles are decomposed into fine bubbles. The upper foam merges with the lower layer of milk.

On the one hand, this whirlpool can eliminate some big bubbles, and on the other hand, milk can be fully integrated with milk bubbles, so that milk and milk bubbles will not be delaminated so easily. Of course, if the foam is laid for a long time, it will also be layered, if it is possible, it is best to concentrate and foam at the same time.

[question and answer 2]

Q: what is the grinding degree measured by the cup?

A: with regard to the degree of grinding of the cup test, the cup test standard of SCAA is the screen pass rate of 20 mesh 70% Mel 75%.

The bean grinder we use is Forte BG. In order to find a suitable cup to measure the degree of grinding, we tested the degree of grinding of 4m, 5A, 5B, 5D and 5m, each grinding 20 grams of powder, sifted out 17.6,16.5,14.9,12.8 and 12 respectively. According to the cup test standard of SCAA, we finally chose 5B, with a pass rate of between 70% and 75%.

[question 3]

Q: when do you want to clean and grind? What is the purpose of the mill?

A: how to judge whether to clean and grind from the state of the powder?

1. The grinding powder caking is more serious.

2. If no matter how the grinding is wrong, it is very likely that it is necessary to adjust the grinding or change the cutter head.

What is the meaning of the clean mill? If you do not clean the knife plate regularly, the accumulated fine powder will pile up in the cracks, seriously affecting the flavor of your coffee, making the coffee oily, bitter, light, and even sour like herbal tea.

By the way, how should the bean grinder be cleaned? Take the Italian bean mill as an example:

First, clean it easily.

1. After making coffee, clean up the residual coffee powder in the powder box.

two。 Keep the coffee mill area dry

3. Wipe the fuselage easily and keep it clean.

Second, clean regularly

1. Close the bezel of the bean warehouse and beat out the leftover beans

2. Turn off the power

3. Clean the powder outlet with a brush

4. Remove the remaining coffee powder from the powder accumulator and clean the inner wall of the powder reservoir with a brush

5. Remove the cutter head for cleaning

While cleaning the residual powder with a brush, you can check whether the blade is worn or notched, and if so, change the cutter head in time.

6. Clean the other cutter head and reinstall it

Since you have disassembled the cutter head, you need to recalibrate the grinding as follows:

First of all, slowly tighten the cutter head, and power on, when you hear the cutter head collision, immediately adjust to avoid cutter head wear.

All right, this is the Qflaga of this issue! The above is only a small part of the novice's questions. if there are any mistakes and inadequacies, please leave a message for supplementary discussion. If you have any other questions about coffee, you are welcome to communicate with us, and we will try our best to answer.