How Does Carbonic Maceration Shape Yirgacheffe Flavor?
The Kochere area of Yirgacheffe, Ethiopia, produces high-quality coffee, and Origin Project's Red Jade CM Select series applies carbonic maceration with natural processing. The result is a cup with red, orange, and yellow fruit notes, a clean texture, and medium body, rather than the sharp acidity sometimes associated with the region.
Carbonic maceration places whole cherries or pulped beans in a sealed, temperature-controlled tank filled with carbon dioxide. This limits the oxygen exposure that can cause over-fermentation or alcoholic off-flavors, so coffee quality improves more safely. Origin Project began CM trials in Ethiopian regions in 2017, and its CM Select Ethiopia series has now run for three years.
The Kochere region of Yirgacheffe, Ethiopia, is renowned for its high-quality coffee beans, and the Red Jade CM Select series launched by Origin Project uses carbonic maceration combined with natural processing, delivering an unforgettable flavor experience. This article will take an in-depth look at the principles of the CM processing method, the terroir characteristics of the Kochere region, and the detailed flavor profile of the Red Jade CM natural coffee beans. If you are interested in this bean, Front Street Coffee also has relevant recommendations.
CM is the abbreviation of Carbonic Maceration, translated into Chinese as 二氧化碳浸渍, a technique originally applied in the field of red wine making.
Specifically, before the grapes are pressed, the whole grape berries are placed in a sealed environment filled with carbon dioxide gas for fermentation.
Origin Project hopes to use this carbon dioxide processing technique to explore more possibilities in coffee fermentation and flavor development.
For this reason, only coffee that has been personally selected by the Origin Project team and subjected to carbonic maceration processing can bear the name "CM Select." The processing flow for CM Select coffee is: first complete the CM processing, then choose subsequent methods such as natural or washed according to requirements.
Using the carbonic maceration method to process coffee beans can effectively enhance the flavor expression of the coffee.
During operation, the coffee cherries or coffee beans with the pulp removed are placed in a sealed container with constant temperature and humidity, filled with carbon dioxide, for fermentation. This method can avoid the risk of flavor deterioration caused by over-oxygen fermentation or alcoholic fermentation, thereby safely improving coffee quality.
Since 2017, the Origin Project team has launched experiments related to the carbonic maceration processing method in Ethiopian producing regions. To this day, the CM Select Ethiopia series produced by Origin Project has entered its third year.
The CM Select coffee of the Red Jade series is easily reminiscent of red, orange, and yellow fruit notes in flavor.
After a series of carbonic maceration processes, these coffees exhibit rich flavors, a clean texture, and medium body.
The Kochere area of Yirgacheffe is known for producing high-quality Ethiopian coffee beans—acidic and mineral-rich soil, combined with high-altitude conditions, together form an ideal microclimate for coffee cultivation.
The coffee produced there has a delicate, lemon-dominated front-end flavor, which then transitions into an extremely balanced and round mouthfeel.
Compared with other Ethiopian coffees, it has lower acidity, so it is widely favored by consumers.
This Red Jade from Origin Project Ethiopia uses the special processing method of carbonic maceration natural, and its flavor performance is astonishing, with a rich aroma and quite excellent acidity quality.
Origin: Ethiopia
Region: Gediyo region, southern Ethiopia, Yirgacheffe Kochere
Variety: Heirloom
Processing method: Carbonic maceration natural
Altitude: 2000-2200m
Flavor description:
Rich body, with flavors of chocolate toffee, dark berries, dark cherries, tropical fruits, plum, and a savory umami note
The above content is compiled by CoffeeHunters, a coffee news website.
