Introduction:Yunnan small-grain coffee was once undervalued due to rough processing methods and its frequent use in instant coffee. However, with the rise of the specialty coffee trend, it now showcases unique flavors of plum, nuts, and caramel. This article explores the种植 altitude and processing methods of the washed Catimor from Baoshan, analyzing its bright acidity and clean mouthfeel, and provides practical pour-over and espresso brewing parameters to help you rediscover this promising Asian coffee bean.
When it comes to Yunnan coffee, many still hold onto early stereotypes: extensive farming practices, primarily used as raw material for instant coffee, with relatively simple processing techniques. However, in recent years, driven by active local government promotion and the influence of the specialty coffee movement, Yunnan’s planting and post-harvest technologies have improved significantly, gradually developing a distinctive flavor profile that includes notes of plum, nuts, caramel, and even tea-like qualities.
There were two main reasons why Yunnan coffee was not well-regarded in the past: first, the lack of scientific management in cultivation methods, and second, the majority of beans being sent to international brands like Nestlé to serve as the base for instant coffee, which made refined processing difficult. But as specialty coffee culture becomes more widespread, from field management to post-harvest processing, Yunnan coffee is gradually transforming. It has not only developed clear regional characteristics in areas with suitable altitudes but has also become a new choice for pour-over enthusiasts.
In one brand’s daily staple coffee series, the representative of the Yunnan region is the washed Catimor from Baoshan. Baoshan was chosen for its uniquely favorable geographical conditions—altitudes generally exceeding 1200 meters, a height considered a critical dividing line between commercial and specialty beans. Higher altitudes usually mean richer flavor profiles and denser bean texture.
The batch of Baoshan Catimor selected by the brand is grown at elevations above 1200 meters and processed using the washed method: after depulping, the beans are fermented in water tanks for 18 to 36 hours. This step effectively enhances the bright acidity while imparting a cleaner and crisper overall mouthfeel, allowing drinkers to more directly experience the unique flavor characteristics of the Yunnan region.
Upon receiving this batch of green beans, one can observe that the bean color is uniformly greenish, typical of the Catimor variety commonly found in Yunnan. Fresh green beans emit a faint grassy aroma, mixed with some sweet-and-sour plum-like notes. It should be noted that the Catimor variety contains a small amount of Robusta genetics, so compared to pure Arabica, its grassiness may be slightly more pronounced. To balance this grassiness and highlight the unique flavors of the Yunnan region, the brand roasted this bean to a medium level, resulting in a warm, cinnamon-like bean color.
Roasting parameter details (using Yangjia 800N roaster, 300g capacity): Drum entry temperature set to 190°C, initial flame power at 120, air damper opening at 3; turning point reached at approximately 1 minute 40 seconds, when drum temperature dropped to 145°C, the air damper was adjusted to 4, with flame power remaining unchanged; when the bean surface turned yellow (around 166°C), the grassy aroma completely dissipated, entering the drying phase; when the drum temperature reached 188°C, flame power was reduced to 60 and the air damper was adjusted to 5. At approximately 8 minutes 37 seconds, the bean surface showed obvious wrinkles and dark spots, and the toast bread aroma transitioned to coffee aroma. At this point, close attention should be paid to the first crack—around the 9-minute mark, the first crack began, maintaining the same air damper setting, allowing the development phase after first crack to continue for 3 minutes, with the final drop occurring at 198°C.
After roasting, the beans had an Agtron bean color value of 63.1 (top image) and an Agtron roast color value of 70.4 (bottom image), with a Roast Delta value of 7.3, indicating a uniform heat distribution at a medium roast level, suitable for showcasing a balance between acidity and sweetness.
Brewing recommendation (for pour-over coffee enthusiasts): It is recommended to use a Hario V60 filter, with a coffee dose of 15 grams, water temperature controlled at 90°C, grind size at 75% passing through a #20 sieve, and a coffee-to-water ratio set at 1:15. Use a three-stage pouring method: the first stage involves pouring double the coffee dose (approximately 30 grams) for a 30-second bloom to allow the coffee grounds to fully expand; the second stage uses a fine stream to pour in a circular motion from the inside out until reaching 125 grams, then pause to let the coffee bed descend to the middle of the filter; the third stage continues with the same fine stream to pour up to 225 grams until the filter drips dry, with a total extraction time of about 2 minutes. These parameters help bring out the bean’s bright acidity and layered fruity aromas.
For those who prefer espresso extraction, you can also try the “某品牌黑可可” base blend—this recipe combines the creamy texture and nutty tones of Brazilian beans with the unique mild acidity and cocoa flavors of Yunnan small-grain coffee. The overall mouthfeel is balanced and smooth, with moderate crema performance, making it suitable for home or café use, allowing you to easily enjoy the unique charm of the Yunnan region in your daily coffee.
The above content is compiled by CoffeeHunters, a coffee news website.
