What is the structural stratification of coffee fruit? Is it true that there are five floors from the inside out?

Exocarp → pulp → endocarp (Parchment) → silver peel → seed

The above picture shows the plane structure of coffee fruit. A mature and complete coffee fruit is divided into the above five parts.

This picture shows the cross section of the coffee fruit, from which you can see the main structure of the coffee fruit more intuitively.

Coffee is grown with seeds with endocarp, and the raw coffee beans we usually come into contact with have their endocarp removed, so they can't be planted.

Endocarp ("sheepskin" or "paper skin") refers to the tea-brown hard skin that wraps the coffee seeds, and the coffee beans attached to that layer are called "shelled beans" ("sheepskin paper beans").

Generally speaking, there are two pairs of seeds in the fruit, but occasionally there is only one seed in the fruit, which is called Pea berry.

The coffee we usually drink is made by grinding, brewing and other steps after roasting the seeds at the center of the coffee fruit.

Coffee fruit is mainly changed into raw coffee beans by the following three treatments: dry type, water washing type and semi-washing type.

Source:

Coffee seedling _ 214 blog