The espresso machine is one of the favorite revolutions of food enthusiasts. For a tool of this kind, the operation is a bit complex. If we love it so much, it’s better to know more about it.
The main components
The espresso machine is a dynamic and complex system, proof of ingenious craftsmanship. The first shot was the work of Angelo Moriondo. The idea was to find a way to filter the flavors of coffee into a glass using hot water. Everything relies on the main components.
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- The water pump: this tool is essential for a perfect extraction. Generally, a pressure of 9 bars is needed to achieve this. Perfect extraction can only occur if the water pump is active. So, whether it’s a vibration pump or a rotary pump, the important thing is to achieve the desired pressure.
- The heating element: this is the device that ensures the right temperature of hot water. The more precise the temperature, the better the result. It is at this price that one can extract all the good juice from the coffee. Each machine is equipped with a heating element. Designers can choose between a thermoblock, a boiler, and a thermosiphon.
- The filter: this is a replaceable component. In fact, when purchased, there is a defined number in the package. Once it feels worn out, it just needs to be replaced. However, the extraction of all the aromas can only be reliable and complete depending on its quality. One must rely on the accuracy of the holes if they want to choose the right one.
The operation
The espresso machine operates on a pressure system. To start, there must be a certain amount of water. This water reserve is heated to a high temperature thanks to the heating element. Depending on the sophistication of the machine, there may be an adjustment. Once the water is hot enough, the water pump comes into play. It must propel the water at a certain speed (high pressure). This affects the quality of the coffee obtained. This element is therefore very important. Its action impacts the extraction. This final step cannot be done without the filter. This set of small holes inside and outside empties the ground coffee of all its aromas. Only after this is the liquid released into a glass or mug. Choosing a coffee maker with a grinder could enhance the quality of the output.
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The different types of espresso machines
Thanks to scientific advancements, the espresso machine has been diversified according to everyone’s purchasing power.
- Basic espresso machine: this is the lowest-priced tool in the range of espresso machines. The process of obtaining coffee is quite rudimentary. One does not contribute at all to the quality of the final liquid.
- Mid-range espresso machine: aimed at modest families or those with high purchasing power, this machine is more advanced than the previous one. Limited adjustments are allowed.
- Professional espresso machine: this is the queen of espresso machines. It allows the user to express their desires freely. Therefore, they must be knowledgeable. Thus, they will specify the heating temperature, extraction pressure, and filter quality.
All the parameters detailed above help to more easily understand the process of obtaining an espresso.