Coffee bean processing technology: from origin to delicious aroma

Coffee bean processing technology: from origin to delicious aroma

Coffee is one of the most popular drinks in the world, and coffee beans are the key raw material for making coffee. In order to produce delicious coffee with a strong flavor and overflowing aroma, it needs to go through a series of sophisticated processing techniques. This article will introduce the entire process of coffee bean processing starting from the origin.

1. Harvesting and processing at the origin

Most high-quality coffee beans come from tropical regions such as Asia, Africa, and South America. In these places, farmers regularly pick ripe coffee cherries. They usually choose to pick them by hand to ensure that only the best and ripest cherries are selected.

Once harvesting is complete, farmers process the freshly picked fruit, first removing the outer skin and pulp, which can be done manually or mechanically.

2. Vertical fermentation

After being peeled and pulped, coffee beans usually retain a sticky layer of pectin. To remove this layer of pectin, the coffee beans need to be fermented. In the traditional method, farmers place the coffee beans in shallow trays or tanks for fermentation.

Fermentation usually lasts from 12 to 48 hours, depending on the local climate and coffee variety. During this process, the pectin is broken down by microorganisms and a series of chemical changes occur.

3. Washing and sun drying

After fermentation, the beans need to be washed to remove any remaining pectin and other impurities. Farmers wash the beans in a sink and rub them thoroughly to clean them.

After cleaning, the coffee beans need to be dried. In most cases, they will choose to spread the wet coffee beans in a cool and ventilated place for sun drying. This process may take several days or even longer to completely dry.

4. Baking

Once the coffee beans are completely dry, they are ready for roasting. Roasting is one of the most important steps in coffee bean processing and is key to giving coffee its special flavor and aroma.

During the roasting process, coffee beans are heated to high temperatures and undergo chemical reactions, during which the moisture inside the coffee beans evaporates and rich aroma substances are produced.

5. Grinding and brewing

After roasting, the coffee beans need to be crushed for brewing. Usually, people choose to put the whole coffee beans into a special coffee machine or a manual device for crushing.

Once the grinding is done, you can choose different ways to brew delicious coffee according to your personal taste. Whether it is drip, espresso or French press, you can make an intoxicating and mellow taste.

Conclusion

From origin to delicious aroma, coffee beans go through a series of delicate processing. Each step has an important impact on the final coffee quality. Only through the hard work of farmers and the skills of producers can high-quality coffee beans be transformed into an intoxicating aroma.