Basic knowledge of fine coffee coffee tanning method

After harvesting, coffee beans must be immediately processed, otherwise they will start to ferment and cause coffee beans to produce odors. There are two methods of treatment,"solarization" and "washing", which will cause different flavors.

The beans of solarization method have complete natural mellow flavor, gentle aroma and more colloid; washing method has good mellow flavor, high aroma and lively acidity. Alcoholic flavor is an important condition for espresso coffee, which will produce a strong alcohol and smooth feeling like wine. Espresso lovers can increase the amount of sun-dried beans; washed beans are clean as clear wind chimes, because they have less miscellaneous flavor. In addition, washed beans have a good sour taste and are the main source of sweetness in espresso coffee.

sun-drying

Sunlight is also known as "natural drying" because it uses natural sunlight to dry coffee fruits and green beans. Due to the use of artificial and natural processing methods in the process, sun-dried beans look less neat in appearance and sell less well.

1. Bean selection: Put the harvested fruit into the water tank, the mature fruit will sink, and the immature and overripe fruit will float up and can be removed.

2. Drying: Put the selected mature fruits on the square for 5-6 days until they are fully dried. At this time, the fruit turns dark brown and has a moisture content of 13%.

3, shelling: After drying, the peel becomes fragile, easy to fall off, it can be removed by machine. Enterprise farms usually set up their own shelling factories, small farms are handed over to the processing center for processing.

Selection and grading: delicate farms will identify defective beans manually or by machine and select them for disposal. The manual selection method usually uses a conveyor belt about 1 meter wide, with several female workers sitting on both sides to visually select the bad beans; some good farms even go through several selections until no defective beans are found. Machine selection rules use computers to identify and weed out defective beans, followed by a grading process that divides coffee beans into quality grades according to established criteria, with good coffee going to the specialty coffee market and bad coffee going to the commercial coffee market.

5, polishing: shelling treatment can only remove the exocarp and endocarp, at this time, the silver film is still wrapped in the outer layer of the seed, you have to use a machine to grind this layer of film. Then, fill the coffee beans into 60KG bags. The weight of bags varies slightly from region to region. Most of them use sacks.