Introduction to the treatment methods of Coffee beans

Brazilian half-sun-natural removal of pectin:

Brazil used to use the method of tanning in the past, and there was a big difference in quality, which made Brazil Chongqing synonymous with low-to-middle quality. However, in order to improve its quality and reverse its image, the world's largest coffee producer carried out a quality revolution in the 1990s and vigorously promoted the global half-sun method.

Brazilian coffee fields are endless and are mostly harvested mechanically in order to meet the economic benefits. When 75% of the coffee fruit in the coffee garden turns red, mechanical harvesting is started, followed by the same pre-washing operation, which is moved into the sink to remove floating beans, sift out the sunken beans, and then use a large pulp screening machine to dig out the pulp and remove the pods covered with pectin. The next stage is separate from the washing method: the sticky pods do not need to be moved into the tank to ferment, but to the outdoor bean drying farm. Because of the dry climate in Brazil, the sticky pectin on the pods will harden in about a day or so. Then use a large number of manpower to turn up and down, so that the pods dry evenly inside and outside, so as not to return to moisture and stink. In about two to three days, with the help of the natural force of the sun pass and dry climate, the pods can achieve a certain degree of dehydration. The water content is then further dried in a dryer, the water content is reduced to 10.5%, and the pods are stored in a special container for about 10 days to further mature, in order to stabilize the quality, remove sheep skin (pods) before export, remove coffee beans, graded packaging and half-sun (pulped-natural) is also called honey treatment (Miel Process in Spanish), which is said to mean the process of making raw beans with mucous membranes for sun-drying.

The honey treatment process is vulnerable to pollution and mildew, so it needs to be closely watched throughout the process, constantly turning, and speeding up drying, so as to avoid bad fermentation flavor. Its advantage is that it can best preserve the original sweet flavor of coffee ripe fruit, making the coffee show elegant black sugar flavor and drupe flavor, while the berry flavor also supports the basic aroma of red wine, which is considered to be a very elegant product. The popularity of honey-treated boutique coffee beans is largely due to its sweet and thick characteristics. in recent years, there are more and more boutique coffee beans called "Miel Process", and they have also become the preferred material for international boutique coffee contestants. Mechanical semi-washing-economical and affordable.

Not all producing areas can use the Brazilian half-sun method. If the producing area with heavy moisture is allowed to take out the pectin pods and expose them outdoors, it is not only not easy to be dehydrated and hard, but also easy to parasitize molds. Therefore, mechanical semi-washing has been developed in areas with heavy humidity, which saves both labor and water.

First of all, the red fruit and half-green and half-red fruit sunk into the sink into the pulp sieving machine to remove the full pectin, and there is no need to take it to the sun, let alone pour it into the sink to ferment, but directly into the nearby pectin scraper (Demucilager) with a small amount of water, which can mechanically scrape off the sticky pectin shavings, take out the smooth pods, and expose them outdoors until the water content is reduced to 12%.

In addition, there are in vivo fermentation methods, such as Kopi Luwak raw beans are fermented and shelled in civets. Others such as shit coffee, monkey coffee and so on.