Semi-automatic coffee machine using video _ how to use Italian semi-automatic coffee machine

Professional coffee knowledge exchange More coffee bean information Please pay attention to coffee workshop (Weixin Official Accounts cafe_style)

In daily life, extraction coffee basically depends on equipment assistance, in the process of use, the equipment will certainly cause a lot of wear and tear (especially the different pressure of the espresso machine, the water temperature frequently switched), so the correct use of the equipment and its regular maintenance It is particularly important.

Water is dominant in the coffee extraction process, and the cleanliness of the equipment directly affects the quality of the finished coffee. As the most dedicated "partner" in the cafe-coffee machine, how to use it correctly is related to the normal operation of the entire cafe, we explain how to take good care of the "partner" who works side by side with us from the following points.

1. Use coffee powder appropriate to the cup capacity

Coffee machines are usually equipped with two handles to facilitate our daily use, a single cup filter cup and a double cup filter cup, the main difference is the different volume of the powder bowl, so before extraction, we have already prepared the appropriate coffee powder in line with the filter cup capacity. Why emphasize this in the first place? Because many newcomers who have just entered the coffee industry often do not have the concept of filter cup capacity, there will be two situations when coffee powder that does not match the capacity of the filter cup is extracted: one is insufficient extraction, the other is excessive extraction, and coffee cannot be extracted ideally.

This point of damage to the coffee machine is reflected in the brewing head seal ring, excessive coffee powder in the filter cup (the ultra-filter cup water line after powder compaction) causes the handle to be stuck, most newcomers will use brute force to tighten the handle, long-term improper use, will accelerate the wear of the seal ring. The symptoms that will occur after the seal ring of the brewing head is worn to a certain extent are: the extraction process is not tightly sealed, resulting in water seepage from the filter cup, and the extraction is unqualified; the second is the handle is twisted and misplaced, affecting the operation.

2. Do not use hot water in boiler frequently

At this stage of the brand commercial coffee machine, most of them use independent boiler form work, the purpose is to control the temperature. With the popularity of fine coffee, we will not say much about the importance of water temperature, and it is necessary to switch the water temperature at any time for different parameter extraction. Many practitioners have a common problem is that they do not understand the internal structure and working principle of the coffee machine. For convenience, they like to use the hot water of the brewing head to rinse the coffee grounds on the handle after extraction, or use the hot water outlet to clean the coffee cup. In the eyes of professionals, this is very wrong (we usually have a dry cloth dedicated to wiping the handle).

Frequent use of hot water in the boiler on the coffee machine damage is reflected in the boiler heating pipe, heating pipe is one of the main components of the coffee machine work, switching different extraction water temperature is simply to give the heating pipe different setting instructions, we in the discharge of hot water when the pump will restart to fill the cold water into the boiler, fill the cold water into the boiler discharge hot water space, due to the existence of PID settings, heating pipe will restart heating. So repeated, one is the huge loss of heating pipe, increase the loss of electricity in the store; the other is frequent heating speeds up the formation of scale in the boiler, affects the water quality and affects the quality of coffee, wasting water resources.

Whether it is using the brewing head hot water cleaning handle or using the hot water port to clean the coffee cup, too frequent use is a challenge to the life of the coffee machine, and the damaged heating tube will only increase the output of electricity and accelerate the breeding of boiler scale. The vicious circle is the high utility bill and the shortened service life of the coffee machine (the coffee machine will be paralyzed after the heating pipe burns out).

3. Please use each head in turn

As a commercial form of coffee machine, there are usually two brewing heads or more, referring to the second point, we always have to take into account the service life of the coffee machine, after all, coffee machine is an expensive tool. Rotating the use of the brewing head can solve a series of wear balances, including seal wear, heat pipe wear and smooth water quality.

We don't advocate fixed use of the left (or right), one is to improve the wear imbalance of the coffee machine, the other is to improve your own skills.

4. Drain the boiler regularly

Mainly aimed at steam boilers, because steam boilers are composed of two-thirds hot water and one-third steam, we only consume part of the steam in the milk, and the hot water in the closed boiler will continue to form steam. In this cycle process, boiler water is in a state of repeated heating, due to the small amount of steam consumed, boiler water is not frequent, after a long time, boiler water will form a stagnant water layer, in order to reduce the growth of scale, regular discharge of boiler water is necessary. General machine steam boiler will have a bottom drain valve for drainage, convenient for us to use, it is recommended that users discharge once a month, cycle a new water to achieve maintenance effect.

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