Key points of coffee knowledge: what is the difference between an Italian coffee maker and an American coffee maker?

Coffee machine is the general name of a kind of coffee brewing machine, which is divided into American style and Italian style. Many people do not know much about the difference between Italian coffee machine and American coffee machine. Today, the editor of Wang Sen Coffee training School has experienced a coffee trip according to their differences. The content is rich, and there are all kinds of shopping skills. Brand models are not recommended to avoid the suspicion of advertising.

Italian coffee maker

It is usually equipped with a boiler to produce hot water, which is pressurized to about 9 atmospheric pressure and then flows through the powdered coffee beans in a metal filter to brew coffee. The coffee brewed by this pressurized hot water is thicker than usual and has emulsified fat. It is often called espresso or espresso. There are many kinds of Italian coffee machine. For general commercial use, the most common one is single boiler, and then there are double boilers and multiple boilers. Of course, the price also becomes more expensive, in addition to the general electronic control switch, there is also a pull-out Italian coffee machine, each has its own advantages. Commercial ones range from 40, 50, 000 to 40, 500000, and there are numerous types.

American coffee machine

Usually divided into upper and lower layers, the pre-ground powdered coffee beans are placed in an upper funnel-shaped container equipped with filter paper or metal filters, and the lower layer is a coffee pot made of glass or ceramic, pouring cold water into another separate interval. When starting, heat the cold water to about 90 degrees Celsius and gradually introduce it into the funnel-shaped container, so that the hot water passes through the coffee powder and flows into the coffee pot below.

In addition, the coffee machine can not only cook coffee, but also make tea.

Espresso: high pressure extraction

The espresso machine uses high-pressure hot water to extract coffee through the coffee powder trough. Because today's Italian coffee machines use air pumps to increase the pressure in the boiler to achieve the pressure needed to extract cream, it is also called pump coffee machine. In the past, the older Italian coffee machine needed to manually push the pressure bar to boost the boiler, also known as Laha coffee machine, now the value of Laha coffee machine is mainly reflected in its viewing, the convenience of use and the taste of coffee are not as good as pump coffee machine.

American Coffee: atmospheric pressure extraction

Generally through the American drip filter to cook, a little similar to the Italian coffee machine, the American drip filter is also to make hot water through the coffee powder tank to extract coffee. But the difference is that the hot water is at atmospheric pressure.

Other aspects

1. American coffee machine, no pressure, only black coffee, that is, American coffee. You can't make any other fancy coffee.

2, Italian coffee machine, there is a certain pressure, you can use the pressure to make ESPRESSO coffee with quite thick coffee oil. Some plain espresso can be served with milk, latte, foam, and cappuccino. And other fancy coffee.

3. Price: American coffee is of pretty good quality at about 200 yuan. Italian coffee machine, the price ranges from 7 million to more than 100 thousand.

How to choose and buy Italian coffee machine

The production of Italian coffee has a lot to do with the machine, and a perfect espresso can be called a combination of art (the craftsmanship of the maker) and technology (the design of the coffee machine) like a well-recorded record. Making a good Espresso (espresso espresso) is one of the most challenging "activities" for both coffee lovers at home and a veteran Barista in a cafe. Of course, the selection and purchase of Italian coffee machine should be divided into two categories: family and professional. Please take a look at the espresso machine selection guide carefully prepared by Wang Sen School editor for you.

Household Italian coffee maker

In principle, it is "impossible" for families to make espresso. That's why mocha pots are almost always used in Italian families. Maybe Italians have reached a consensus that they don't learn to make coffee themselves, because it's too difficult. So everyone went to the street for coffee. This is the commercial significance of espresso.

Nowadays, Americans may be willing to spend money and money on it because it is too difficult to find good coffee, or because they have spare money and time.

There is also a type of coffee maker in Italy, which is mainly used by baristas at home. Commonly known as semi-professional coffee machine; prosumer machines. For example, ECM's Giotto coffee machine, although this is more suitable for small coffee shops, but due to domestic certification system restrictions, so now can not be imported. Or a better home coffee machine, such as Miss Silvia of Rancilio (note that Americans use this machine at home with a PID thermostat; otherwise it is difficult to guarantee a good coffee). Such machines usually use professional handles, but the boilers are very small and the pumps are mainly vibrating pumps. But semi-professional E61 bubble head is often used, so it is good to use. But who can afford that kung fu? Mainly baristas are best used at home.

Professional Italian coffee maker

Generally speaking, professional machines are good, mainly made in Italy. Of course, some of them are leather and solid, while others are not very useful and easy to break. Especially automatic ones. Because of the electronic control board, the quality of this kind of products is not very good and it is easy to break down. In comparison, manual (of course, not "real" lever type, but "small" lever type) and semi-automatic ones are less prone to failure. The manual one is a mechanical switch, which can hardly be broken. The semi-automatic power switch is very large, the wire is very thick, and it is difficult to damage. Especially if there is no local dealer to provide maintenance and warranty, it is best to use this kind of machine.

Some people attach importance to the appearance, but don't forget that usually only the good machine business is good and the profit is good, so you have the money to make the machine look better. So appearance is not entirely meaningless. The simplest thing is not to have plastic parts.

E61 bubble head, this is a special part. This is the best way to use professional machines. Because it has two advantages, one is to use the hot water in the boiler to constantly heat the bubble head to avoid the temperature of the bubble head being too low. The most important thing is that this brewing head has an automatic "pre-soaking" function, which is very convenient for production. Otherwise, manual "pre-immersion" is not easy to grasp, easy to forget, and may be operated improperly. Machines with this function are slightly more expensive than ordinary machines, but the price difference is not very large. Generally speaking, the price of a professional coffee machine is not obvious.

Then there is the double pressure gauge, which, of course, refers to the vibrating pump. The pressure gauges used by some machines are not accurate enough, which is not convenient to adjust the pressure.

Now many people emphasize the control of temperature, including David schomer. So there are some newly developed coffee machines with direct temperature display and temperature adjustment functions. But although this kind of machine is easy to use, because many parts are electronic products, it is best to find a local dealer to provide warranty and maintenance services. Otherwise, the operation of the coffee shop may be affected.

Last but not least, you'd better buy a new machine. Second mobile phones are often used for a long time, if there is no fault, it is time to break down. So it is likely to encounter maintenance problems when using it. Or if you do not understand the fault of the machine, it may affect the production of coffee, without knowing it, which is even worse.

Treatment of Common problems in Italian Steam Coffee Machine

1. Coffee is too light: this coffee machine is an Italian professional steam coffee machine, which belongs to Italian coffee utensils. The scale above is set according to the concentration of Italian coffee powder, while Italian coffee powder is very strong. When cooking other coffee powder with relatively low concentration, adjust the ratio of coffee powder to water to get a relatively rich taste. For example, after filling the coffee powder lightly, you can make coffee to the position of scale 2.

2. The coffee temperature is too low: after turning on the power, wait for the water from the outlet to be hot before loading the coffee powder, or open the lid to heat it, and then close the lid when the water inside is about to boil, so that the coffee tastes hot.

3. Water will come out soon after turning on the power: this is a normal situation, because the coffee machine boiler is very sealed, the water and the gas inside will expand after heating, the water will be pressed out, and the coffee can be made after the water is scalded. Or open the lid of the water outlet to heat it, you can avoid this phenomenon.

Milk foam production

1. Heat the milk to 50 or 60 degrees and set aside.

2. Open the steam button and use an empty cup to catch the mixture of water and steam discharged at the initial stage.

3. After a continuous large amount of steam is discharged, the steam rod is in semi-contact with the milk level.

4. the milk foam forms slowly, and the cup is removed as soon as you get the right one.

5. Add the milk foam to the coffee with a large coffee spoon and OK

How to buy American Coffee Machine

Because there is nothing to develop in the function of the American coffee machine, so it is mostly on the appearance of the style, of course, the factory is also working on how to reduce costs. Although the American coffee maker is simple, can you buy it casually when you buy it? Since the functions are all the same, is it the cheaper the better? In fact, this is not the case, let's talk about the selection and purchase of American coffee machines.

Guide to the selection and purchase of American coffee machines

When choosing a coffee machine, you should first pay attention to the material of the machine, that is, the quality of plastic. The choice of plastic is in line with food safety, and many other people may smell a strong smell of plastic when using American machines, which is because the plastic used is not good. You can hardly smell plastic when you brew coffee with good plastic. But at present, in order to reduce costs, some domestic factories use recycled plastics to produce multi-purpose black, black can cover up some impurities of recycled materials, if the machine is made into white, you can better see whether the materials are good or bad. In addition, we should also pay attention to the thickness of the machine plastic, some machines may be in order to reduce costs, the machine wall is very thin, with the finger press or pressure can obviously feel. The thin wall is easy to cause damage, and the thin wall will also make the plastic smell more prominent when heated.

Secondly, when you choose and buy a machine, you must choose porous hot water. The more holes, the finer the better, generally at least 9 holes, as is the case with many American-style pores. At present, many American machines sold online and many machines in domestic shopping malls produce water from a single hole, which is very unreasonable. A large hole to produce hot water can easily lead to excessive intermediate extraction and insufficient edge extraction. If hot water comes out from a single hole, it will seriously affect the extraction effect.

There are many ways to heat the American coffee machine, adding the flow limiting valve or increasing the power is to make the water temperature higher and heat faster. Better machines will use semi-enclosed heating methods similar to boilers: stainless steel boilers have spiral heating copper tubes. The water temperature of this American machine for brewing coffee can reach 92-96 degrees. The water from the average American machine is only more than 80 degrees, which is obviously too cold for coffee. If the water temperature is solved, consider how to fully soak the coffee powder in hot water, usually with filter paper. If it can be equipped with a gold filter like Swiss gold swissgold, the effect will be better.

Finally, the American coffee machine, whether it is the simplest or electronically controlled, will have automatic heat preservation. That is, when the water is finished when brewing coffee, the machine can enter the state of automatic heat preservation without turning off the machine. In order to drink as much of the aroma of coffee as possible, an American coffee machine with a lower heat preservation temperature. Of course, it is best to cook and drink.

Using skills of American Coffee Machine

Treatment of Common problems in American Coffee Machine

1. Coffee is too light: the ratio of water to coffee powder is not right, so just increase the amount of coffee powder appropriately. The Min scale of the glass coffee pot below is 2 cups, which requires 4-6 spoons of coffee powder.

2 、. Coffee temperature is too low: due to the principle of the American coffee machine, a large part of the heat will be lost in the process of extracting coffee, so the coffee temperature is not high, so you can first add coffee powder and directly boil it in the water tank for a while. wait until the water dripping into the glass pot is hot and then start cooking again according to the steps of brewing coffee, or you can directly heat the water in the water tank.

3. Coffee powder is not fully extracted: the coffee ground now has dregs, and the coffee powder left in the filter is coffee grounds, and the quantity will not be reduced. If some of the coffee powder is still dry, the coffee powder can be piled into an inverted cone when you put the coffee powder, with the highest part in the middle, which is beneficial to the extraction of coffee powder.

4. no coffee: check whether the switch light is on, if not, check the power supply of the socket, and then check whether the glass coffee pot is covered with the lid and installed in the coffee machine. When the coffee machine is working, you must rely on the lid on the glass pot to open the piston. Coffee will drip smoothly from the filter into the coffee pot.

How to make fragrant coffee with an American coffee machine

Because the filter speed of the American coffee machine is too fast, it will affect the extraction of coffee, so it is necessary to add a piece of special filter paper for the American coffee machine to delay the extraction time of coffee. Manual assistance in the process of brewing: pay attention when brewing coffee. When coffee drips into the coffee pot, turn off the power and wait for 5 seconds, then turn on the power switch for about 15 seconds (depending on the amount of coffee), turn off the power again for 5 seconds, turn on the power again for 15 seconds, turn on the power again for 5 seconds, and finally turn on the power. When the coffee reaches the desired amount, the power will be turned off OK. A cup of strong coffee is immediately presented in front of you! If conditions permit, put the coffee into a cup and heat it in the microwave oven for 20 to 30 seconds, the coffee will be more mellow. Do not heat the coffee pot with the original coffee maker!

Source: network