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What is the meaning of water washing treatment of coffee? raw bean treatment method water washing method

Washing method-- Coffee bean treatment method

The coffee beans after harvest must enter the treatment program immediately, otherwise they will begin to ferment, making the coffee beans have a bad smell. There are two methods of treatment: "solarization" and "washing", which will cause different flavors. Sun-dried beans have a complete natural mellow flavor, gentle aroma and more gum; washing rules have a good mellow taste, high aroma and lively sour taste.

Mellow taste is an important condition of espresso, which will produce a mellow and smooth feeling as strong as wine. Espresso lovers can increase the weight of sun-dried beans; water-washed beans are as clean as clear wind chimes because of less miscellaneous smell. In addition, washed beans have a good sour taste, which is the main source of sweetness in espresso.

Washing method:

1. Choose beans:

Put the harvested fruit in a water tank and soak for about 24 hours. At this time, ripe fruit will sink, while immature and overripe fruit will float up and can be removed.

2. Remove the pulp:

Use a machine to remove the peel and pulp, leaving only coffee beans wrapped in endocarp. At this time, there is a layer of mucous membrane on the outside of the beans, and the process of washing is to wash this layer of mucous membrane.

3, hair alcohol:

The adhesion of the mucous membrane is very strong and is not easy to remove. It must be placed in the slot for about 18-36 hours to make it alcohol and decompose the mucous membrane. There are two methods of fermentation, namely wet hair alcohol and dry hair alcohol, as the name implies, the former adds water, the latter does not add water. In the process of producing alcohol, the seeds and internal pulp will produce special changes, which is one of the steps that most affect the flavor of coffee. Some farms add hot water or alkanolins to speed up the production of alcohol, which has a negative impact on quality and is not popular with selected coffee lovers.

4, washing:

Farms that use the washing method must build washing ponds and be able to introduce an endless supply of running water. During the treatment, the finished beans are put into the pool and passed back and forth, using the friction of beans and the power of running water to wash the coffee beans until smooth and clean.

5, dry:

After washing, at this time, the coffee beans are still wrapped in the pericarp with a moisture content of 50%. They must be dried to reduce the moisture content to 12%, otherwise they will continue to be mellow, moldy and rotten. The better treatment is to use sunlight to dry, although it will take 1-3 weeks, but the flavor is very good and very popular. In addition, machine drying is used in some places, which greatly shortens the processing time and makes the flavor not as good as that of sun-dried coffee.

6, shelling:

The dried beans can be stored in a warehouse or handed over to the factory for shelling to remove endocarp and silver film.

7, selection and grading:

Like tanning hair, washed coffee has a process of picking and grading, which is used to remove defective beans and ensure better quality, which is then handed over to exporters to sell around the world.

Honey treatment, in fact, the fruit hanging off the surface of the epidermis leaving pectin in the air, and according to the degree of scraping off yellow honey (scraped off 60%) and red honey (30%) and a kind of black honey is actually full sun. The taste between washing and sunbathing

The long time of water washing and fermentation depends on water washing, fermentation, peeling, drying, sour, refreshing, clean, elegant and floral fragrance.

Half-washed, first scrape off the pectin peel with a machine and then wash and ferment

Semi-washing actually scrapes off more pectin than honey treatment, leaving very little pectin in the sun, drying for three days in a dryer until 10%.

72 hours double water washing method in Kenya general washing fermentation 24 hours 32 hours Kenya needs to ferment twice for a total of 72 hours

Country: Ethiopia

Grade: G2

Producing area: Yejia Xuefei

Baking degree: shallow baking

Treatment: washing

Variety: native species

Flavor: Jasmine, lemon, bergamot, honey, black tea

Cochel is located in a small producing area 25 kilometers southeast of Yegashafi, Ethiopia. It is a rich area for coffee production. It is also one of the three famous and micro-producing areas of Yegashafi. It has about 100,000 local residents, and coffee beans are the main source of income. The processing and processing equipment in this area is very advanced. CoffeeReview, a well-known coffee evaluation website, gave Kocher a high rating of 94 points for washed beans.

There are eight main coffee producing areas in Ethiopia: Nekempte (Lekempti) Gimbi Kinby, Limulim, Illubabor Ibedo, Djimma Gemma, Harrar Hara, Teppi/Bebeka Bebeca, Sidamo Sidamo, and Yirgacheffe Yega Chefe. Among them, the more well-known boutique coffee producing areas are Nekempte (Lekempti), Limu, Harrar, Sidamo and Yirgacheffe,Yirgacheffe, which are located in the Sidama region of Ethiopia. It can be seen that Yirgacheffe belongs to the smaller region of the Sidama producing area.