What are the storage methods of raw coffee beans? how long can the raw coffee beans be kept?

When the raw coffee beans are not roasted, the color is relatively light, while the roasted beans will be darker when the seeds have been taken out, and then the drying process is carried out. It is best to lay the floor for the sun to dry, and the flavor is better. But if it rains, it can also be dried by machine, but the temperature should be controlled. Dry and then polish. Generally speaking, washed beans are bluish green, beautiful, and have a clear and bright sour taste. Guatemala, Colombia, Blue Mountains, Cana, Kenya, Java and Panama coffee are all washed beans. Washing is used in Latin America with the exception of Brazil.

The rule of the sun is to take the red fruit to dry directly and then force peeling and shelling. In this way, beans are often defective and not very beautiful. The appearance of the common foreign body or stone bean appearance of the sun-dried beans is more incomplete, the flavor of the beans treated by this method is more complex, with the taste of the sun, the fruit flavor is very strong, and the consistency is better than the washing method, but the bean phase is not good. General Brazilian beans as well as Manning and mocha are typical sun-treated beans.

Let's talk about the natural sun method: this method is the oldest way to get seeds, and it is easier than washing. Wash the fruit and pick it when it turns red, ignore the sun rule, continue to make the fruit purple and black, and finally fall off on its own, then spread the fruit in the sun for a few weeks, and then remove the seeds naturally after the pulp is dry, and then remove the stiff pulp by machine or manual grinding. The focus of late harvest is to let the seeds fully absorb the aroma and sweetness of the pulp, and then after exposure, the flavor is more complex than water-washed beans, and the consistency is also good. Yemenmoka, Harald, Ethiopia, and some Brazilian manor beans all fall into this category.

Finally, the semi-washing method. The first step is the same as washing. The fruit is picked when it turns red, but it is not thrown into the fermentation tank. Instead, the peel is removed by a machine, the berries are spread on the ground, dried and moistened, and the dried flesh is ground with a special machine to remove the seeds. Most of Mantenin in Indonesia adopts semi-washing method. Brazil has also begun to use semi-washing in recent years, which is the only one in the world that has both sun exposure. The country of production of water washing and semi-washing