Sambicoffee / Coffee sector
FROM TREE TO BEANS
A cup of coffee can only be enjoyed through a long process. The shrub is called the coffee tree. The flowering gives fruits first green and then the maturity is realized by a very red fruit.
In Burundi, the picking is totally done by hand which guarantees a very good quality of the harvest.
In fact, the pickers only take the fruits when they are perfectly ripe and red.
This technique is very effective and requires a daily harvest.
Elsewhere in the world, there is also the method of destemming.
It is a much faster and much less selective method of harvesting which results in lower quality coffees.
Stalking consists in picking the whole bunch of cherries on the coffee trees manually or even using machines. This process implies that the ripe fruits are mixed with much less mature fruits.
After the harvest, comes the time of sorting in which the cherries are separated from all unnecessary waste from the picking: branches, flowers, leaves. Then, we must proceed with the extraction of the grains of the fruit (extraction of the core of the cherry coffee). Here also 2 methods quite distinct from each other can be used. Each of the methods has an impact on the cost and quality of the coffees.
PROCESSING STAGES OF THE COFFEE SECTOR
There are 2 different treatments of red cherries:
The sundried coffee is obtained by drying which consists of spreading the fruits in the sun and returning them by raking regularly. By this method the coffee obtained is called natural coffee.
The fully washed coffee is obtained by washing. The washing consists in placing the fruits in large vats filled with water, then passing them in different sieves to remove the pulp. This much more expensive method makes it possible to obtain coffees known as high quality washed coffees.
For more info, Cafex Washing station is specialized in specialty coffees and high quality fully washed coffees.
Once one of these 2 drying or washing processes have been carried out, it is necessary either to hull the sundried coffee, obtained by drying, or to hull the parchment coffee obtained by washing. This is where the hulling mills come in.
For more info on a hulling (dry) mill have a look at Ikawa Nziza dry mill.
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