To make espresso, you should use mixed beans about Italian concentrated (espresso) blending and flavor.

Commercial coffee trees planted are mainly divided into three categories: Arabica (Arabica), Robusta (Robusta) and Liberika (Liberica). Among them, Liberika (Liberica) is rarely seen because of its small output.

It is generally believed that Arabica coffee beans grown at high altitudes have elegant aroma and taste, while Robusta coffee beans grown at low altitudes have the bitterness of wood and Punch.

In Italian coffee shops, it is most common to mix 10% 40% Robusta beans with Arabica coffee beans as the base.

The higher the proportion of Robusta coffee beans mixed, the stronger the espresso flavor and the easier it is to form crema. However, it also loses its original delicacy and aroma.

In many cafes (Australia, Seattle, USA, etc.), most of them use 100% Arabica coffee beans

The flavor of espresso does not only depend on the roasting effect of coffee beans, but also comes from the blending of coffee beans.

The ideal Italian concentrated (espresso) flavor should be that all the elements can be balanced and the taste is bright. After drinking it, the throat feels mellow rather than bitter.

To put it more specifically, it should have moderate acidity, bitterness, sweetness, rich taste (flavor), solid and strong consistency (body), and a lasting finish (aftertaste) that feels like a refreshing sour citrus.

And when making cappuccino (Cappuccino), it can blend with milk, and the sweetness of milk is clear and prominent. In this way, even without sugar, it will be delicious.

Use 100% Arabica (Arabica) coffee beans, divided into single Italian concentrated beans, or mixed Italian concentrated beans.

What the latter needs is to choose to match each other to enhance the flavor, increase the overall taste and rhyme, and supplement the lack of consistency of a single variety.

Let me give you an example:

Japan's espresso has mixed four kinds of coffee beans, based on Brazilian beans, and then used Kenyan, Bolivian and Papuan beans to make up for the missing elements. All four of the above are Arabica.

The principle explains: "Brazilian beans used as a base use beans with a cocoa-like flavor of chocolate (flavor), while Kenyan beans are made of beans with a refreshing sour taste of lemon or grapefruit, the sour taste of citrus that exudes a refreshing aftertaste. Bolivian beans taste similar to Brazilian beans. Adding the mixture is to enhance the taste of Brazilian beans. Papuan beans are high in oil (crema) and can be used to increase body. "

Ps:

Aftertaste: refers to the aftertaste and fragrance left in the nasal cavity of the mouth after drinking.

Source:

The blog of coffee man Lu Xiansen