What do coffee beans look like? Uncover the true face of coffee beans!

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

First of all, in terms of appearance, mature coffee beans are oval or slightly flat. Usually, they have two relatively smooth and parallel surfaces. These surfaces are called "back" and "belly", the back is usually flat and the belly is slightly convex. In addition, in terms of color, mature coffee beans are dark brown or black and shiny.

Secondly, in terms of internal structure, each coffee bean consists of two main components: the kernel and the shell. The kernel is composed of two leaves that fit tightly together. These leaves are called "seed coat" and "shell". The seed coat is located in the innermost layer of the kernel and has a harder texture; while the shell is located outside the seed coat and covers the entire kernel. The shell is relatively soft and can be easily peeled off.

Finally, coffee beans also have a unique aroma. When we smell freshly roasted coffee beans, we experience a rich and alluring aroma. This is because coffee beans are rich in volatile compounds, which are released during the heating process and give coffee beans their special aroma.

In summary, ripe coffee beans present an oval or slightly flattened appearance and have a dark brown or black glossy color. The internal structure contains two main components: the kernel and the shell. In addition, when we smell the fresh roasting process, we can feel the rich and attractive aroma.