What do coffee beans look like? Uncover the appearance characteristics of coffee beans!

Coffee beans are a very common food in our daily life. They are the main raw material for making coffee. So, what do coffee beans look like? Let's reveal the appearance characteristics of coffee beans.

First of all, from the overall point of view, coffee beans are oval or oblate. Usually, a complete coffee bean consists of two hemispherical seeds, which fit tightly together inside the fruit. There is a gap between the two seeds, called the "endosperm crack", which can separate them.

Secondly, in terms of color, mature coffee beans usually appear dark brown or dark black. This is because during the ripening process of the fruit, internal enzymes and oxidation reactions cause the originally light yellow or green flesh to gradually darken and form a special and attractive aroma.

In addition, some Venus faces can be seen on the surface texture, which refers to a special pattern that appears on some high-quality, selected grades and well-processed coffee beans. This pattern is similar to the shape of a human face and is considered one of the signs of good quality coffee beans.

In addition, there is a layer of smooth and shiny waxy substance on the surface of coffee beans, called the "endosperm skin". This skin plays an important role in protecting the internal seeds from oxidation and moisture. Of course, this skin will be removed during the roasting process.

Finally, there are differences in the size of coffee beans. Generally speaking, Arabica coffee beans are larger and flatter, while Robusta coffee beans are relatively small and round. Coffee beans of different varieties and origins will vary in size.

In summary, mature coffee beans are oval or oblate, and have a dark brown or dark black appearance. They have Venus face patterns and endosperm skin on the surface, and vary in size. Knowing these characteristics, we can better judge the quality and taste of coffee when buying and tasting it.