10 Things That Your Family Teach You About Machine Espresso
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Isabelle Lindon 24-09-08 00:38 view57 Comment0관련링크
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How Does Machine Espresso Work?
Machine espresso employs precise pressure and mind-blowing filter technology to make the coffee we love. How does it work exactly?
Espresso is made by pushing hot water at high pressure through finely ground coffee. The process is similar to that of making drip coffee. However, the pressure is the primary difference.
The Group Head
The group head is the portafilter you place in the espresso maker when making it. It is responsible for dispersing water into the portafilter and controlling the pressure of the extraction. There are a variety of types of group head, each with their unique advantages and drawbacks. Some focus on temperature stability, whereas others on pre-infusion options, and others are designed to control the lever. Some come with a combination of both, such as the E61. This is a popular choice among baristas due to the fact that it has multiple advantages in one package.
As you can see in the photo above the head of the group has a number of notches. You can place your portafilter in these notches and then turn the head around to secure it. There is also a gasket made from rubber in the notches and helps to create a seal when you insert your portafilter into the machine. The notches on the head permit an exact placement of the portafilter, which is essential to ensure an efficient extraction.
The group head not only lets you to insert your portafilter easily however, it also keeps the same temperature. This is achieved by cycling hot water around the portafilter and through the brew basin, ensuring the temperature is always right for extraction. This is important because even a few degrees can mean the difference between excellent and great espresso home machine.
The Pump
The motorized pumps used in espresso machines rotary provide nine atmospheric bar pressure needed to extract espresso. This is different from manual piston machines that rely on a lever. The pressure is created by pumping water through a heat exchanger and then through the ground coffee.
Pumps tend to be cheaper and last longer than piston-driven machines. However, both kinds of machines can degrade because of frequent use and poor cleaning. Pumps are also more complicated mechanically, which can increase prices of even simpler models.
Some espresso machines employ steam pressure instead of a pump in order to brew espresso. This can cause over-extraction because the boiler that produces steam also causes the water to boil. Additionally these machines are often required to restore their pressure between cups, which takes time and energy.
Many espresso machines make use of the rotary or vibration pump. A vibration model uses an oscillating disk to create pressure, while the rotary model pushes hot water through the ground at high speed. Both types of machines can produce an excellent espresso, however Rotary machines are quieter and more durable than vibration pumps.
The Boiler
The boiler will heat the water to the right temperature for extraction. The steam created reaches the portafilter, which is the container that holds the retro espresso machine coffee grounds. It is then funneled into the cup. During this process the steam causes enough pressure to push the grounds of the coffee through. This produces a layer of crema that is then poured over. This is a hallmark of a great espresso.
There are three kinds of espresso makers. They differ in the type of pump they employ and the degree of heat that the brew is. There are different ways to control the amount of brew, as well as the size of cup that can be produced by the machine.
The first espresso machines were steam-type. The earliest espresso machines were steam types. This resulted in the coffee tasting burnt and bitter. This is the reason Milanese manufacturers Luigi Bezzerra and Desiderio Pavoni created the modern espresso machine.
The most common espresso coffee makers machine is a semiautomatic one with an electric pump. When people think of espresso machines, they envision these machines. Semi-automatic machines require you to grind and tamp the beans yourself The pump, however, regulates the flow of water and pressure. This is an excellent compromise between human touch and the mechanised quality.
The Filter
Typically, espresso machines have filters to separate the grounds of coffee as they move through the hot water. The filter is also an essential component of the machine's temp control, since it stops overheating.
Filters also aid in flavor as it allows for an extended flowering time. This allows beans to release their flavor and gives an opportunity for a better extraction.
However, it is important to remember that even a great filter can result in a poor cup of coffee, since the quality of the beans and extraction is still vital.
It's in this area that the magic happens. This is what makes buy espresso machine taste so good. The grouphead, also referred to as the brew head, is where the portafilter (the device you put the coffee ground into) is placed when making espresso.
Steam-driven espresso machines make use of hot water heated in an airtight vessel to create steam. The steam then moves hot water through the grounds of the coffee under pressure. They are less expensive and easier for the user to maintain than pumps-driven models. However, they are limited in their ability to create the perfect conditions for brewing, since they are only operating at 1-1.5 bars of pressure. However, the perfect shot requires 9-10 bars.
In recent years, compressed air-driven espresso machines have become more popular. They use an air compressor to push the hot water through the grounds, and are far more portable than electric steam-driven machines.
Machine espresso employs precise pressure and mind-blowing filter technology to make the coffee we love. How does it work exactly?Espresso is made by pushing hot water at high pressure through finely ground coffee. The process is similar to that of making drip coffee. However, the pressure is the primary difference.
The Group Head
The group head is the portafilter you place in the espresso maker when making it. It is responsible for dispersing water into the portafilter and controlling the pressure of the extraction. There are a variety of types of group head, each with their unique advantages and drawbacks. Some focus on temperature stability, whereas others on pre-infusion options, and others are designed to control the lever. Some come with a combination of both, such as the E61. This is a popular choice among baristas due to the fact that it has multiple advantages in one package.
As you can see in the photo above the head of the group has a number of notches. You can place your portafilter in these notches and then turn the head around to secure it. There is also a gasket made from rubber in the notches and helps to create a seal when you insert your portafilter into the machine. The notches on the head permit an exact placement of the portafilter, which is essential to ensure an efficient extraction.
The group head not only lets you to insert your portafilter easily however, it also keeps the same temperature. This is achieved by cycling hot water around the portafilter and through the brew basin, ensuring the temperature is always right for extraction. This is important because even a few degrees can mean the difference between excellent and great espresso home machine.
The Pump
The motorized pumps used in espresso machines rotary provide nine atmospheric bar pressure needed to extract espresso. This is different from manual piston machines that rely on a lever. The pressure is created by pumping water through a heat exchanger and then through the ground coffee.
Pumps tend to be cheaper and last longer than piston-driven machines. However, both kinds of machines can degrade because of frequent use and poor cleaning. Pumps are also more complicated mechanically, which can increase prices of even simpler models.
Some espresso machines employ steam pressure instead of a pump in order to brew espresso. This can cause over-extraction because the boiler that produces steam also causes the water to boil. Additionally these machines are often required to restore their pressure between cups, which takes time and energy.
Many espresso machines make use of the rotary or vibration pump. A vibration model uses an oscillating disk to create pressure, while the rotary model pushes hot water through the ground at high speed. Both types of machines can produce an excellent espresso, however Rotary machines are quieter and more durable than vibration pumps.
The Boiler
The boiler will heat the water to the right temperature for extraction. The steam created reaches the portafilter, which is the container that holds the retro espresso machine coffee grounds. It is then funneled into the cup. During this process the steam causes enough pressure to push the grounds of the coffee through. This produces a layer of crema that is then poured over. This is a hallmark of a great espresso.
There are three kinds of espresso makers. They differ in the type of pump they employ and the degree of heat that the brew is. There are different ways to control the amount of brew, as well as the size of cup that can be produced by the machine.
The first espresso machines were steam-type. The earliest espresso machines were steam types. This resulted in the coffee tasting burnt and bitter. This is the reason Milanese manufacturers Luigi Bezzerra and Desiderio Pavoni created the modern espresso machine.
The most common espresso coffee makers machine is a semiautomatic one with an electric pump. When people think of espresso machines, they envision these machines. Semi-automatic machines require you to grind and tamp the beans yourself The pump, however, regulates the flow of water and pressure. This is an excellent compromise between human touch and the mechanised quality.
The Filter
Typically, espresso machines have filters to separate the grounds of coffee as they move through the hot water. The filter is also an essential component of the machine's temp control, since it stops overheating.
Filters also aid in flavor as it allows for an extended flowering time. This allows beans to release their flavor and gives an opportunity for a better extraction.
However, it is important to remember that even a great filter can result in a poor cup of coffee, since the quality of the beans and extraction is still vital.
It's in this area that the magic happens. This is what makes buy espresso machine taste so good. The grouphead, also referred to as the brew head, is where the portafilter (the device you put the coffee ground into) is placed when making espresso.
Steam-driven espresso machines make use of hot water heated in an airtight vessel to create steam. The steam then moves hot water through the grounds of the coffee under pressure. They are less expensive and easier for the user to maintain than pumps-driven models. However, they are limited in their ability to create the perfect conditions for brewing, since they are only operating at 1-1.5 bars of pressure. However, the perfect shot requires 9-10 bars.
In recent years, compressed air-driven espresso machines have become more popular. They use an air compressor to push the hot water through the grounds, and are far more portable than electric steam-driven machines.
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