The reason why Italian coffee beans need to be mixed with beans and lattes

Why do Italian coffee beans have to be mixed?

Although some fixed varieties of coffee can be drunk directly as individual coffee, most of the coffee has more or less defects in flavor. For example, there is no special flavor, lack of depth, not strong enough, or a certain taste is too strong. In order to make up for these deficiencies, it is necessary to combine several kinds of coffee beans with different characteristics to create a harmonious and deep flavor, that is, Italian coffee beans.