What is Espresso? Characteristics of Espresso coffee beans? What kind of equipment can be concentrated in Italian style?

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Espresso coffee beans

Lattes, Italian concentrates and cappuccinos in coffee shops you can see on the road are almost all made from Espresso machines. Espresso beans are mixed with different coffee beans, so the Italian taste of each company is more or less different. Coffee is divided into Robusta and Arabica beans. Robusta belongs to the kind with high insect resistance and has a bitter and sour taste. Espresso coffee beans are usually taken or made into instant coffee, with the exception of Vietnamese coffee made from Robusta. Arabica is a coffee tree with weak insect resistance, so the price is relatively high, and it has different tastes in different producing areas, just like Sun Moon Lake black tea and Sri Lankan black tea have different tastes. And Espresso is to magnify the advantages and disadvantages of mixed beans, and the production process requires constant practice.

Baked beans-- A chemical reaction that makes coffee beans fragrant

Baking beans is a chemical reaction. First, the Mena reaction dehydrates coffee beans and produces a large amount of carbon dioxide through the decomposition and synthesis of chemical molecules, which will continue for a period of time after leaving the fire. So we all say that fresh beans release carbon dioxide. Another caramelization reaction will release the oil and aroma of coffee beans.

Espresso machines can also brew individual coffee, but this method uses high-pressure rapid extraction of coffee, most of which use medium-and deep-roasted coffee beans. However, after more and more people come into contact with coffee, they begin to study how to make a delicious semantic style, which may be a mixture of two kinds of coffee with different roasting degrees, hoping to make use of the advantages of mixed beans to complement each other. But most businesses still use deep baking for the majority. With the development of coffee, most countries were not as fastidious as Europe in their early years, for example, the United States was a wild place of coffee before Starbucks, but in the second wave of the coffee revolution in the 1960s, when espresso was on the rise, it is still very popular today, and it is in this decade that the growth of coffee shops in Taiwan has caught up with the pace of other countries. The third wave of coffee in the 2000s-- boutique coffee. As people pay more and more attention to taste, the process of planting, cultivating, roasting, and brewing is becoming more and more advanced. Espresso machines can also make individual coffee, not just deep roasting.

Grinding beans-fresh coffee grinding is very important

Espresso's ground beans actually have more eyebrows and higher requirements, such as coffee powder to be "fine", because the coffee machine is different from other brewing methods by using high pressure and high temperature brewing, if the coffee powder is not fine enough, it is easy to extract enough coffee, so that the coffee is not tasty enough, and the fine powder can extract the essence of the coffee. The selection of the bean grinder also needs to be included, which is the heat dissipation when grinding the beans. When the coffee beans have been ground so fine, the aroma will be taken away if the temperature is too high, so a good bean grinder performs well in terms of heat dissipation. In addition, grinding beans may result in fine powder, that is, finer powder, resulting in uneven thickness of coffee powder, different degrees of extraction during brewing and cooking, and the taste will also be affected, so some people will have a "sieving" procedure after grinding beans.

Three types of Espresso machines are recommended

Philips Saeco Coffee Machine Brand Series

Fully automatic coffee machine

A fully automatic coffee machine is a combination of a coffee machine and a bean grinder, which is a good choice for many people who want to save time or the company's shop name. The choice of purchase mainly depends on the stability of the two most important benchmarks, pump pressure and water temperature. A cup of Espresso will flush out 30 milliliters in 25 seconds, but it is not easy to keep the pump pressure and water temperature at the same level in these 25 seconds. Even if the price of a coffee machine ranges from thousands to tens of thousands, the first condition for selection is the water temperature and pump pressure. The pressure specification of 15 bar is usually provided on the market, but in fact, Espresso only needs 9 bar, so it is the first condition that can provide 9 bar and stability.

Then there is the importance of cleanliness, whether it is the bean grinder, flannel filter cloth, as for the utensils that will touch coffee beans or coffee powder, otherwise the residual powder and residual oil will taste bad and even the oil smell is very strong. It is also important to choose a coffee machine that is easy to clean, and the automatic coffee machine also includes the part of grinding beans, which is also one of the key points of cleaning. The reason why the commercial bean grinder outside is not cleaned every time after grinding is that the distance between each cup is not too long and does not constitute a deteriorating time, but it will affect the taste if the household is separated by one or two days. Finally, there is a very important warranty and after-sales service. Like any high-end products, we have to protect our own rights and interests to ensure that agents or product companies can give consumer protection!

RANCILIO SILVIA semi-automatic coffee machine

Semi-automatic coffee machine

The first condition, like the automatic coffee machine, is the stability of pump pressure and water temperature, which is an important condition for boiling a good cup of Espresso, and the second is the problem of warranty and maintenance. if the machine is damaged in the process of use, it is the most important thing to be repaired.

Nespresso capsule coffee machine

Capsule coffee machine

The Espresso brewed by the capsule coffee machine may not be as mellow as the fresh beans, but it has won a big victory in convenience, and now there are capsules that can fill the capsules themselves, and the coffee you drink will be close to that made by the coffee machine. The capsule coffee machine is similar to the automatic coffee machine, and it must be cleaned.