Is it necessary to buy coffee cloth powder injection? What should I do if the espresso powder lumps? Why does coffee powder generate static electricity?

I wonder if any friends have found that the recent espresso extraction is more and more prone to channel effect. Even if the powder distributor is used to evenly distribute the powder, the force when pressing the powder is also very uniform, but in the extraction, the coffee is still prone to sputtering and uneven extraction.

Well, in a situation like this, friends who often watch the front street already know at a glance that it is because the weather is too dry that static electricity is more likely to be produced, and coffee powder clumps together, thus contributing to the emergence of the channel effect. Although most of today's bean grinders are equipped with anti-static power grids that break caking, it is inevitable that caked coffee powder will escape "sanctions" and fall into the powder bowl to affect the extraction. Is there any good way to reduce the effect of caked coffee powder on extraction?

Of course, you only need to use a small auxiliary tool to give the coffee powder a "acupuncture treatment" before filling it to solve the problem! And this process has a professional name, that is: Weiss Distribution Technique (WDT for short), auxiliary props we can often see-"cloth powder needle".

How does the cloth powder needle solve the channel effect? Very simple, when operating, we only need to poke and stir the coffee powder in all directions through the cloth powder, so that the caked coffee powder will be separated by collision! Not only that, as a result of stirring, the distribution of coffee powder can be more uniform.

Such a tool was invented by Mr. John Weiss (John Weiss) in 2005, and he was forced to invent such a tool because of static electricity. Therefore, this cloth powder method is called Weisbu powder method. Then from the dynamic picture below, we can see that the extraction process using cloth powder needle will be relatively more stable. Not only did not there be much coffee spatter throughout the process, the liquid column also remained stable in the center. (concentrated extraction using cloth powder needles on the left and unused concentrated extraction on the right)

In terms of taste, it goes without saying that the espresso on the left, which has less channel effect, will perform better, with a balanced sweet and sour taste and a prominent taste. The concentrated flavor on the right, which is constantly sputtered during the extraction process, is much inferior in performance because of uneven extraction. However, many friends always encounter a problem after using the cloth powder injection, that is, the coffee powder after breaking up will expand as a whole due to the increase of the gap. That is, the body will be taller, even without a powder bowl for a time! This will make it more difficult to spread the powder with a cloth dispenser, which will cause the coffee powder to be pressed directly out of the powder bowl.

Well, in a situation like this, Qianjie suggests that you can gently knock on the powder bowl after using the cloth powder card cloth. Because in this way the air between the coffee powder and the coffee powder can be discharged, the gap is reduced, and the height of the coffee powder is naturally reduced, making it easier to spread the powder.

How to choose and buy cloth powder needle? Finally, there is the question of the selection and purchase of cloth powder needles, because there are so many kinds of cloth powder needles on the market, so this makes it difficult for many friends who have difficulty in choosing. The small one is very small, the big one is very big, how should this be chosen?

In fact, the difference between the size of cloth powder needle mainly lies in the number of fine needles, when the larger the volume of cloth powder needle, the more the number of fine needles, and vice versa. So with regard to the selection and purchase, it mainly depends on our own functional requirements. If it is our own use, do not care about the speed of cloth powder, then small and exquisite cloth powder needle will be a good choice! On the one hand, it is portable, and on the other hand, it is affordable; if you want to put the cloth powder needle into commercial use, so that the production of each cup of coffee is more stable, then Qianjie suggests buying a larger cloth powder needle is more appropriate! Because these cloth powder needles have more fine needles, the cloth powder is made more quickly. Each cup can save a lot of powder time, so that the product is more in line with the rapid positioning.

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