Effects of different processing methods of raw coffee beans on taste-describe the taste of coffee

Effects of different processing methods of raw coffee beans on taste-describe the taste of coffee

In the process of washing, the peel and pulp of the fruit are treated with a special desizing machine and the coffee beans are peeled off. The coffee beans then enter the fermentation tank for fermentation treatment so that the mucous membrane is no longer sticky. The sugars in the mucous membrane are decomposed during fermentation. Depending on the fermentation method, the fermentation time is usually 12 hours to 6 days (some growers use the watering system to ferment coffee beans. This method is called the Kenyan washing method (Kenyan method) and usually lasts for several days). It is extremely important to decide when to stop fermentation. Once the coffee is overfermented, the taste of the coffee will become too sour. Once the sticky material in the mucous membrane is decomposed, it will be washed down with a lot of water. (the waste water from the raw bean treatment process is considered to be the source of pollution in the coffee industry. Today, advanced technologies are being developed in many areas to recycle and filter the waste water produced by this process. Water shampoo was produced in the 19th century, also known as "wet processing"

Processing: picked coffee cherries, including freshly ripe, overripe, and unripe, are all mixed together. If these coffee cherries are not treated separately, the quality of the coffee beans is really unpalatable, because it is mixed with a lot of bad-tasting impurities. So these coffee cherries should be washed and placed in a large trough full of water for preliminary classification. The best coffee has a high density, so it sinks into the water. On the other hand, overripe coffee cherries will surface and can be easily classified. Remove the pulp from the outer layer of the coffee cherry and then soak it in a large sink filled with water. After fermentation, the water-washed coffee will have a distinctive and clear flavor. The fermented coffee beans are washed with clean water, then removed from the water and dried in the sun or machine. Finally, the peel and silver peel are removed by a sheller, which can be screened and divided into different grades of raw coffee beans.

Introduction to honey processing (semi-dry processing)

Processing: first remove the skin with water, and then go to the sun. This is a relatively new and rare method. This method is only suitable for specific areas of some countries, with a long drying period. The coffee produced by this method is sticky, and the mucus is not removed as it is fermented in the tank. Therefore, the coffee produced by this semi-washing method contains the characteristics of both washing and drying. The acidity, sweetness, seasoning, and flavor of the coffee are quite good; the disadvantage is that the coffee taste is not as strong as that produced by pure drying or washing.