Advantages and steps of washed coffee beans

Advantages

Washing coffee beans is a common processing method, which has many advantages. First, washing can effectively remove the pulp and mucus on the surface of coffee beans, making the coffee beans cleaner. Secondly, washing can help remove impurities and unripe fruits in coffee beans, improving the quality of coffee. In addition, washing can also reduce the acid and bitter substances produced during the fermentation process.

Step by step guide

The steps for washing coffee beans are described in detail below.

1. Picking and soaking

First, the coffee berries of suitable maturity need to be picked, screened and cleaned. Then, these berries are placed in a large container and soaked in appropriate amount of water.

2. Peeling and fermentation

After soaking for a period of time (usually 12-24 hours), take out the soaked fruits and rinse them with clean water. Then use mechanical equipment or manual operation to remove the outer skin of the fruits to obtain coffee beans.

Next, the coffee beans are placed in a fermentation tank for fermentation. The fermentation time is generally 24-48 hours, depending on the local climate and coffee variety. During this process, the coffee beans will undergo some chemical changes, which will help remove bitterness and impurities and form a special flavor.

3. Flushing and screening

After fermentation, the coffee beans are rinsed with clean water. This step helps remove the remaining pulp, mucilage and other impurities.

The rinsed coffee beans are then screened, usually using a density separator or hand screening to separate the coffee beans of different sizes, shapes and densities.

4. Soak in water and rinse again

Next is the final water soaking step. Put the screened coffee beans into a container and add appropriate amount of clean water to soak for about 12-24 hours. This step can further improve the quality and make the coffee beans cleaner.

Finally, give the soaked coffee beans a final rinse to ensure all residual material is removed.

5. Drying and storage

After the washing step, the coffee beans are spread out in a cool and ventilated place to dry naturally. This process may take a few days to a few weeks, depending on the local climate and humidity.

Finally, store the completely dried coffee beans in a sealed container in a cool, dry, dark environment to maintain the freshness and quality of the coffee beans.

Summarize

Washing is a common and effective processing method that plays an important role in improving coffee quality. By taking appropriate steps and controlling each link, clean, high-quality and good-tasting washed coffee beans can be obtained.