Can deep-roasted espresso beans be made by hand? What is the difference between single coffee beans and mixed beans?

Although there are many ways to make coffee, but at present, all coffee can be broadly divided into two categories, one is Italian coffee with multiple ways of playing, and the other is single coffee that mainly shows flavor. So at present, the coffee beans sold on the market are mainly divided into two kinds: Italian beans specially prepared for Italian coffee, and single beans that can fully show their flavor, which are mainly used for hand-washing, siphon and other extraction methods.

Qianjie believes that people will come up with some more "rebellious" ideas, such as "can single beans be used for the extraction of espresso", or "can espresso beans be used for hand-brewing coffee", and so on. The experiment of using single coffee beans in Italian style has proved that it is feasible, so Italian coffee beans are used in the production of single coffee. Of course you can! The reason for distinguishing them is that different extraction methods lead to different emphasis, so in order to make coffee beans give play to more advantages in a certain extraction mode, it is necessary to create its own characteristics according to different extraction methods. Then let's share in the front street, what's the difference between Italian beans and single beans?

What is a single bean? Let's start with single beans, which refers to coffee beans from a single origin / variety / batch. Since the concept of boutique coffee was released by Ms. Ernusen in 1978, the coffee industry began to pay attention to the quality of coffee. Since then, the quality of coffee beans has been improved, the flavor is more prominent, and the taste is cleaner. And this coffee bean from a single origin is called "single product coffee bean", referred to as single product bean.

We can clearly trace the source information from the single bean package to the source of the single bean: variety, planting place, treatment, altitude and so on. And this kind of beans are mainly used in the production of individual coffee, hand brewing, siphon, Philharmonic pressure and so on, because these ways can better show the flavor of the beans themselves. At the same time, in order to better show the flavor properties of beans, single beans generally used for the production of single coffee will use shallow baking (compared to Italian style), so that the flower-fragrant fruit rhyme can have a better expression. (except for some other more classic beans, such as Blue Mountain, Manning, etc.)

What are Italian beans? Let's talk about Italian beans. In Italian beans, most of them are blended. The so-called blending is to piece together several coffee beans from different producing areas and fill each other's shortcomings with their respective advantages (there are also other matching requirements, details can be moved to "the underlying logic of blending coffee"). So that the final coffee has a stable taste, taste, and aroma. And Italian matching will also change the quality of coffee beans because of the different direction of pursuit. (for example, the pursuit of more cost-effective matching will use commodity beans to match, while if it is to pay attention to quality matching, it will use high-quality single beans to make it better. )

Generally speaking, the beans used in espresso are roasted to a moderate, medium-to-deep level, because espresso is not only used for black coffee, but also for latte, Australian white, mocha and other fancy coffee. If the degree of roasting is too light, not only is there little fat, but the taste of coffee is easily overshadowed by the taste of milk. So generally speaking, beans used in espresso are roasted a little deeper. Even SOE is no exception, it is also a single bean, and when it is set for espresso, the roaster will make it slightly more roasted to make it more expressive under the extraction of the espresso machine.

Due to the high consumption of espresso, generally speaking, Italian beans are sold in large sizes such as 1 pound or 1 kg (single beans are usually less than half a pound), and because of the large quantity, the price will be much cheaper than that of single beans. But it is important to know that because of the different degrees of baking between the two, when we decide to use them in the same way, we cannot use the same parameters. For example, when a single bean originally used for hand flushing is put into Italian extraction, the original grinding scale needs to be adjusted, because its structure is denser and needs to be better extracted by Italian coffee machine by expanding its surface area; the same is true for loosely structured espresso beans, which require thicker grinding to reduce the surface area, making it less easy for hot water to extract bad substances.

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