Introduction to the brand of semi-automatic commercial coffee machine
Introduction to the brand of semi-automatic commercial coffee machine
Semi-automatic coffee machine, commonly known as handle machine, is a traditional Italian coffee machine. This kind of machine grinds, presses, loads, brews and removes the residue manually according to manual operation. These machines include small household machines with single faucets, large commercial machines with double faucets and three faucets, etc., and the newer machines are also equipped with electronic water control, which can accurately and automatically control the amount of coffee brewing.
This kind of machine is mainly produced in Italy and is very popular in Italy. Its main features are: simple machine structure, reliable work, easy maintenance, according to the correct method of use can produce high-quality Italian coffee. The drawback of this machine is also that operators have to be strictly trained to make high-quality coffee with this machine, and good baristas can provide customers with customized coffee.
But if you can make a delicious cup of coffee by hand, it is indeed a kind of spiritual enjoyment.
Think about it, what could be better than homemade coffee?
In 1948, Gaggia applied this principle to complete his coffee machine, because he pushed hot water into a denser coffee powder and the pressure was greater and more stable than ever before, resulting in a layer of Krima on the coffee, which appeared for the first time in history. Since then, Klima has become the symbol of Italian coffee, and like Turkish coffee in the past, Klima is also the standard to judge whether coffee is good or bad. Gaggia's coffee machine also makes the brewing process more dramatic, with the arm operating the crossbar and the crossbar slowly returning to its original position, which has become a routine at many Espresso bars.
The household La Pavoni still maintains the tradition of Signore Cremonesi and does not add a spring to the piston, but some coffee machines on the market that are very similar to La Pavoni, such as the Elektra (Family series), add springs to make the pressure stronger and more stable. The method of discrimination is very simple, as long as you gently press the crossbar to see if there is any reaction force of the spring.
A brief history of coffee machine development Ⅴ
In the evolution of the coffee machine for nearly a century, the Italians found that due to the use of additional 8-9bar pressure to force water quickly through coffee powder, pressure-rich water and coffee powder produced an average resistance, reducing the extraction time of each cup of coffee to 25 seconds and making the coffee powder as soft as flour to improve the extraction rate. At the same time, it condenses the aroma and gum in the coffee, producing a layer of ochre red Krima on the coffee. Because of this layer of Krima, Espresso is displayed with a thick colloid, which is closely integrated with the rich milk foam, creating all kinds of Italian coffee, including cappuccino.
It is because of the coffee brewing method of Espresso, which not only speeds up the brewing speed, but also improves the coffee quality. On the one hand, it makes the coffee shop owner save time and cost, and increases the daily brewing volume by several times. On the other hand, it also attracts more coffee population. Now it has swept the coffee market all over the world and become the mainstream in the market. Although the Italians never occupied any colony that produced coffee, they used the superb technology of the traditional craft to improve the method of brewing coffee and created excellent brewing technology and machines like Espresso, which easily occupied the vast majority of the world coffee market.
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What is the amount of coffee powder extracted from coffee?
The fineness of coffee extraction is a good way to control bitterness, because the finer the grinding, the higher the extraction rate, the easier it is to extract high molecular weight bitter substances such as chlorogenic acid, quinic acid, caffeine and carbides. On the contrary, if the grinding is too rough, the lower the extraction rate is, the more difficult it is to extract the astringent bitter substance with high molecular weight, but the sweet taste with middle molecular weight may remain in the coffee grounds because of insufficient extraction.
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Introduction to the course on what materials and tools are needed to draw flowers for coffee
What materials and tools do you need for coffee? a course introduction to a steam foam machine or a manual milk bubble pot: what is milk foam? Milk foam is the product of a fine mixture of milk and air. The way to make milk foam is to pump air into the milk. The principle is simple, but it is not a simple thing to make a cup of dense and meticulous foam. The most common problem is too much emptiness.
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