16 Must-Follow Instagram Pages For Machine Espresso Marketers
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작성일 2024-09-03
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How Does Machine Espresso Work?
Machine espresso utilizes precise pressure and incredible filter technology to produce the delicious coffee we enjoy. What exactly is it?
In order to make espresso, hot water is forced under high pressure through finely ground coffee. The process is similar to that of making drip coffee. However, the pressure is the main difference.
The Group Head
As the name suggests, the group head is the place you put your portafilter in when brewing espresso. It is responsible for dispersing water into the portafilter before controlling the pressure of the extraction. There are a variety of group heads each with its own advantages and drawbacks. Some are focused on temperature stability, whereas others on pre-infusion capabilities, while others are designed to control the lever. There are even some that come with a range of features, like the E61 that is the standard choice for many baristas because of its ability to provide multiple benefits in a single package.
As you can see in the above image, the group head has several notches where you put your portafilter, then twist it by hand to lock it in. There is also a gasket of rubber that is a part of the notches, which helps create the seal when you insert your portafilter into the machine. The notches allow for an exact placement of the portafilter. This is crucial to ensure an even extraction.
In addition to allowing you easily connect your portafilter, the group head is also responsible to ensure that the temperature remains even. This is achieved by cycling hot water around the portafilter and through the brew basin, ensuring that the temperature is constant for extraction. This is important, as even a few degrees can make the difference between good and excellent espresso.
The Pump
The motorized pumps used in rotary espresso machines provide the nine atmospheric bar pressure that is required to extract espresso. This differs from manual piston machines which use levers. The pressure builds up by removing tap water from a reservoir, and pumping it through a heat exchanger prior to being pumped through the ground coffee machines espresso inside the group head.
Pumps tend to be cheaper than piston-driven machines, and they tend to last longer, but both types of machines could be damaged by excessive use and inadequate cleaning. Pumps are also more complicated mechanically, which can raise the cost of even most basic models.
Some espresso machines remove the pump entirely and employ steam pressure to create espresso. This can result in over-extraction because the boiler that makes steam also warms the water to boil. Additionally the machines often have to restore their pressure between cups, which requires time and energy.
A majority of espresso machines use the rotary or vibration pump, which has a vibration model using a rotating disc that generates the pressure, and rotating models that push hot water through the grounds under high speed. Both machines produce great espresso but rotary machines are more quiet, durable and less likely to break.
The Boiler
The boiler is used to heat the water to the right temperature for extraction. The steam that is created reaches the portafilter, which holds the espresso grounds. It is then poured into the cup. During this process, steam creates pressure and pushes through the coffee grounds. This creates a foam on top of the espresso. This is one of the main characteristics of a good espresso coffee makers.
There are three types of espresso makers, and they differ in the type of pump they use and how hot the espresso is. There are different ways to control the strength of the brew and the size of cup that can be made by the machine.
The earliest espresso machines were steam types. They utilized one boiler to create both brew and steam, but the pressure they could produce was very low - just two bars of atmospheric pressure maximum. This resulted in the coffee tasting burnt and bitter. The modern espresso machine was created by the Milanese producers Luigi Bezzerra & Desiderio Pavoni.
The most commonly used espresso machine is a semiautomatic that has an electric pump. When people think of espresso machines, they envision these machines. Semi-automatic machines require you to grind and tamp the beans by yourself however the pump controls the flow of water and pressure. This is a great compromise between human control and mechanised reliability.
The Filter
Espresso machines typically have filters that separate the coffee grounds from the hot water. The filter is also an essential component of the machine's temp control, since it helps to prevent overheating.
It also helps with flavor, as a filter can allow for a longer bloom time. This lets the beans release their nuances, and also allows for better extraction.
It is important to remember that even the best espresso machine uk 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. It's what makes an espresso really taste good. The grouphead (also known as the brewhead) is where you put the portafilter - the thingy used to place the grounds of coffee into while making espresso coffee machines for sale (cool training).
Steam-driven espresso machines make use of hot water that is heated in an airtight container to make steam. The steam then pushes hot water into the grounds of coffee under high end espresso machine pressure. These kinds of machines are typically less expensive and easier to maintain than pumps-driven models. They are however limited in their ability for creating the ideal conditions for brewing since they only operate with 1-1.5 bar of pressure. The perfect shot requires 9-10 bars.
In recent years, compressed-air-pump-driven espresso machines have become more popular. They use an air compressor to force hot water into the grounds and are much more portable than electric steam-driven machines.
Machine espresso utilizes precise pressure and incredible filter technology to produce the delicious coffee we enjoy. What exactly is it?
In order to make espresso, hot water is forced under high pressure through finely ground coffee. The process is similar to that of making drip coffee. However, the pressure is the main difference.
The Group Head
As the name suggests, the group head is the place you put your portafilter in when brewing espresso. It is responsible for dispersing water into the portafilter before controlling the pressure of the extraction. There are a variety of group heads each with its own advantages and drawbacks. Some are focused on temperature stability, whereas others on pre-infusion capabilities, while others are designed to control the lever. There are even some that come with a range of features, like the E61 that is the standard choice for many baristas because of its ability to provide multiple benefits in a single package.
As you can see in the above image, the group head has several notches where you put your portafilter, then twist it by hand to lock it in. There is also a gasket of rubber that is a part of the notches, which helps create the seal when you insert your portafilter into the machine. The notches allow for an exact placement of the portafilter. This is crucial to ensure an even extraction.
In addition to allowing you easily connect your portafilter, the group head is also responsible to ensure that the temperature remains even. This is achieved by cycling hot water around the portafilter and through the brew basin, ensuring that the temperature is constant for extraction. This is important, as even a few degrees can make the difference between good and excellent espresso.
The Pump
The motorized pumps used in rotary espresso machines provide the nine atmospheric bar pressure that is required to extract espresso. This differs from manual piston machines which use levers. The pressure builds up by removing tap water from a reservoir, and pumping it through a heat exchanger prior to being pumped through the ground coffee machines espresso inside the group head.
Pumps tend to be cheaper than piston-driven machines, and they tend to last longer, but both types of machines could be damaged by excessive use and inadequate cleaning. Pumps are also more complicated mechanically, which can raise the cost of even most basic models.
Some espresso machines remove the pump entirely and employ steam pressure to create espresso. This can result in over-extraction because the boiler that makes steam also warms the water to boil. Additionally the machines often have to restore their pressure between cups, which requires time and energy.
A majority of espresso machines use the rotary or vibration pump, which has a vibration model using a rotating disc that generates the pressure, and rotating models that push hot water through the grounds under high speed. Both machines produce great espresso but rotary machines are more quiet, durable and less likely to break.
The Boiler
The boiler is used to heat the water to the right temperature for extraction. The steam that is created reaches the portafilter, which holds the espresso grounds. It is then poured into the cup. During this process, steam creates pressure and pushes through the coffee grounds. This creates a foam on top of the espresso. This is one of the main characteristics of a good espresso coffee makers.
There are three types of espresso makers, and they differ in the type of pump they use and how hot the espresso is. There are different ways to control the strength of the brew and the size of cup that can be made by the machine.
The earliest espresso machines were steam types. They utilized one boiler to create both brew and steam, but the pressure they could produce was very low - just two bars of atmospheric pressure maximum. This resulted in the coffee tasting burnt and bitter. The modern espresso machine was created by the Milanese producers Luigi Bezzerra & Desiderio Pavoni.
The most commonly used espresso machine is a semiautomatic that has an electric pump. When people think of espresso machines, they envision these machines. Semi-automatic machines require you to grind and tamp the beans by yourself however the pump controls the flow of water and pressure. This is a great compromise between human control and mechanised reliability.
The Filter
Espresso machines typically have filters that separate the coffee grounds from the hot water. The filter is also an essential component of the machine's temp control, since it helps to prevent overheating.
It also helps with flavor, as a filter can allow for a longer bloom time. This lets the beans release their nuances, and also allows for better extraction.
It is important to remember that even the best espresso machine uk 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. It's what makes an espresso really taste good. The grouphead (also known as the brewhead) is where you put the portafilter - the thingy used to place the grounds of coffee into while making espresso coffee machines for sale (cool training).
Steam-driven espresso machines make use of hot water that is heated in an airtight container to make steam. The steam then pushes hot water into the grounds of coffee under high end espresso machine pressure. These kinds of machines are typically less expensive and easier to maintain than pumps-driven models. They are however limited in their ability for creating the ideal conditions for brewing since they only operate with 1-1.5 bar of pressure. The perfect shot requires 9-10 bars.
In recent years, compressed-air-pump-driven espresso machines have become more popular. They use an air compressor to force hot water into the grounds and are much more portable than electric steam-driven machines.
