추천맛집 | How To Explain Machine Espresso To Your Grandparents
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작성자 Gino 작성일24-07-12 23:13관련링크
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How Does Machine Espresso Work?
The machine espresso utilizes precision pressure, and a filtering system that is awe-inspiring to make the coffee you enjoy. What exactly is it?
Espresso is made by pushing hot water under high pressure through finely ground coffee. The process is similar to making drip coffee however the main difference lies in the pressure.
The Head of the Group
The group head is the portafilter that is inserted when you are making espresso. It distributes water into the portafilter, and regulates the pressure during the extraction. There are numerous kinds of group heads each with their own advantages and drawbacks. Some are focused on temperature stability, others on pre-infusion features, and others are designed to control the lever. Some come with a combination of both, such as the E61. This is a preferred choice for baristas because it offers multiple advantages in one package.
As you can see in the image above, the group head has many notches in which you can place your portafilter and then twist it manually to secure it. A rubber gasket is located inside the notches, which helps create a seal while you insert your portafilter. The notches on the head permit an exact location of the portafilter which is crucial to ensure a consistent extraction.
The group head does not just allow you to insert your portafilter easily however it also keeps a constant temperature. This is achieved by cycling hot water around the portafilter, and through the brew-basket to ensure that the temperature is always at the right level for extraction. This is crucial, since even a small difference in temperature can make the difference between a good and excellent espresso.
The Pump
Unlike manual piston machines, which use a lever to pressurize water, the rotary espresso machines use motorized pumps to deliver the nine atmospheric bars of pressure that are required to extract espresso. This pressure builds up by drawing tap water from a reservoir and pumping it through a heat exchanger before it is shot through the ground coffee in the group head.
Pumps tend to be less expensive than piston-driven models, and they tend to last longer. However, both types of machines can be damaged by excessive use and inadequate cleaning. Pumps are also more complicated mechanically, which can increase the price of even the most basic models.
Some KOTLIE Espresso Coffee Machine With Frother Wand machines use steam pressure instead of a pump for brewing espresso. This can lead to over-extraction as the boiler that makes steam also heats the water to boil. Additionally these machines are often required to rebuild their pressure between cups, which requires time and energy.
Many espresso machines use a rotary or vibration pump. A vibration model utilizes an oscillating disk to create pressure, whereas a rotating model pushes hot water through the ground at high speed. Both machines produce great espresso, however rotary machines are quieter, more durable and less likely to break.
The Boiler
The boiler is the one that heats the water to the ideal temperature to extract. The resulting steam is then transferred to the portafilter which holds the ground espresso and is then funneled down into the cup. The steam creates pressure that pushes through the coffee grounds. This results in a layer crema on top. This is one of the main characteristics of a good espresso.
There are three kinds of espresso makers. They differ in the type of pump they employ and how hot the brew is. There are various ways that the brew can be controlled and the size of the cup that the maker can create.
The first espresso machines were steam-types. The first espresso machines were steam types. This resulted in the coffee tasting burnt and bitter. The modern espresso machine was developed by the Milanese makers Luigi Bezzerra & Desiderio Pavoni.
The most commonly used espresso machine is a semiautomatic one with an electric pump. This is what people envision when they think of an espresso maker. If you have a semi-automatic machine you have to grind the beans and then tamp them yourself but the pump provides regulated water flow and pressure. This is an excellent combination of human control and mechanized reliability.
The Filter
Espresso machines usually use a filter that separates the grounds of the coffee from the hot water. The filter is also an essential element of the temperature control system since it helps prevent the machine from overheating.
A filter also helps with flavor because it allows for the beans to flower for a longer period of time. This allows the beans to release their flavor and gives an opportunity for better extraction.
It is important to remember that even the most efficient filter could result in a poor cup of coffee. The quality of the beans and the extraction process are still very important.
This is where the magic happens, and it's what makes an espresso really taste great. The grouphead, also referred to as the brewhead, is where the portafilter (the thing you put the coffee grounds into) sits when you're making espresso.
In the steam-driven espresso machine hot water is heated in an airtight container to create steam. This is then pushed through the grounds at a high pressure. They are less expensive and are easier for the user to maintain than pumps-driven models. However, they are limited in their ability to produce the perfect brewing conditions because they operate at 1-1.5 bars of pressure, while the perfect shot requires 9-10 bars.
In recent years, compressed air Swan Retro Pump Espresso Coffee Machine with Frother-driven espresso machines have been gaining popularity. They use an air compressor to push hot water through grounds and are significantly more portable than steam-driven electric machines.
The machine espresso utilizes precision pressure, and a filtering system that is awe-inspiring to make the coffee you enjoy. What exactly is it?
Espresso is made by pushing hot water under high pressure through finely ground coffee. The process is similar to making drip coffee however the main difference lies in the pressure.The Head of the Group
The group head is the portafilter that is inserted when you are making espresso. It distributes water into the portafilter, and regulates the pressure during the extraction. There are numerous kinds of group heads each with their own advantages and drawbacks. Some are focused on temperature stability, others on pre-infusion features, and others are designed to control the lever. Some come with a combination of both, such as the E61. This is a preferred choice for baristas because it offers multiple advantages in one package.
As you can see in the image above, the group head has many notches in which you can place your portafilter and then twist it manually to secure it. A rubber gasket is located inside the notches, which helps create a seal while you insert your portafilter. The notches on the head permit an exact location of the portafilter which is crucial to ensure a consistent extraction.
The group head does not just allow you to insert your portafilter easily however it also keeps a constant temperature. This is achieved by cycling hot water around the portafilter, and through the brew-basket to ensure that the temperature is always at the right level for extraction. This is crucial, since even a small difference in temperature can make the difference between a good and excellent espresso.
The Pump
Unlike manual piston machines, which use a lever to pressurize water, the rotary espresso machines use motorized pumps to deliver the nine atmospheric bars of pressure that are required to extract espresso. This pressure builds up by drawing tap water from a reservoir and pumping it through a heat exchanger before it is shot through the ground coffee in the group head.
Pumps tend to be less expensive than piston-driven models, and they tend to last longer. However, both types of machines can be damaged by excessive use and inadequate cleaning. Pumps are also more complicated mechanically, which can increase the price of even the most basic models.
Some KOTLIE Espresso Coffee Machine With Frother Wand machines use steam pressure instead of a pump for brewing espresso. This can lead to over-extraction as the boiler that makes steam also heats the water to boil. Additionally these machines are often required to rebuild their pressure between cups, which requires time and energy.
Many espresso machines use a rotary or vibration pump. A vibration model utilizes an oscillating disk to create pressure, whereas a rotating model pushes hot water through the ground at high speed. Both machines produce great espresso, however rotary machines are quieter, more durable and less likely to break.
The Boiler
The boiler is the one that heats the water to the ideal temperature to extract. The resulting steam is then transferred to the portafilter which holds the ground espresso and is then funneled down into the cup. The steam creates pressure that pushes through the coffee grounds. This results in a layer crema on top. This is one of the main characteristics of a good espresso.
There are three kinds of espresso makers. They differ in the type of pump they employ and how hot the brew is. There are various ways that the brew can be controlled and the size of the cup that the maker can create.
The first espresso machines were steam-types. The first espresso machines were steam types. This resulted in the coffee tasting burnt and bitter. The modern espresso machine was developed by the Milanese makers Luigi Bezzerra & Desiderio Pavoni.
The most commonly used espresso machine is a semiautomatic one with an electric pump. This is what people envision when they think of an espresso maker. If you have a semi-automatic machine you have to grind the beans and then tamp them yourself but the pump provides regulated water flow and pressure. This is an excellent combination of human control and mechanized reliability.
The Filter
Espresso machines usually use a filter that separates the grounds of the coffee from the hot water. The filter is also an essential element of the temperature control system since it helps prevent the machine from overheating.
A filter also helps with flavor because it allows for the beans to flower for a longer period of time. This allows the beans to release their flavor and gives an opportunity for better extraction.
It is important to remember that even the most efficient filter could result in a poor cup of coffee. The quality of the beans and the extraction process are still very important.
This is where the magic happens, and it's what makes an espresso really taste great. The grouphead, also referred to as the brewhead, is where the portafilter (the thing you put the coffee grounds into) sits when you're making espresso.
In the steam-driven espresso machine hot water is heated in an airtight container to create steam. This is then pushed through the grounds at a high pressure. They are less expensive and are easier for the user to maintain than pumps-driven models. However, they are limited in their ability to produce the perfect brewing conditions because they operate at 1-1.5 bars of pressure, while the perfect shot requires 9-10 bars.
In recent years, compressed air Swan Retro Pump Espresso Coffee Machine with Frother-driven espresso machines have been gaining popularity. They use an air compressor to push hot water through grounds and are significantly more portable than steam-driven electric machines.
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