Introduction:Delve into the historical origins, varietal characteristics, and flavor profiles of Yunnan’s three mainstream coffee varieties—Typica, Catimor, and Bourbon. Learn the best practices for roasting and pour over brewing parameters for each bean. This article covers everything from varietal origins to practical cupping and extraction recommendations, offering coffee enthusiasts a comprehensive variety comparison and beginner’s guide.
Yunnan small-bean coffee is renowned for its plump beans and mellow mouthfeel, representing China’s domestic coffee-growing regions. Among them, Typica, Catimor, and Bourbon are currently the three most widely cultivated varieties in Yunnan, each with distinct flavor traits and cultivation challenges. This article provides a detailed analysis of the historical background, botanical characteristics, and cupping flavor profiles of these three coffee varieties, along with professional roasting curves and pour over parameters to help readers gain a deeper understanding of the diversity of Yunnan coffee.
As one of the earliest Arabica varieties introduced to Yunnan, Typica’s history dates back to 1904. At that time, French missionary Térence Desgranges brought Typica seeds from Vietnam to Zhugula Village in Binchuan County, Yunnan Province, where successful trial planting marked the beginning of coffee cultivation in Yunnan. This variety belongs to the traditional small-bean type, with an elegant and symmetrical shape, and was later widely referred to as “Yunnan small-bean coffee.” In the 1930s, it was introduced to Puliang and Luoming areas by Mr. Liang Jinshan, with cultivation continuing into the early years after the founding of the People’s Republic of China. By 1952, under the leadership of Ma Guojin, an expert from the Baoshan Tropical Economy Research Institute, large-scale planting began in areas such as Ludian, and it has been nearly sixty years since. Most of the Typica seen in the market today originates from the plants planted during that time.
Take Typica grown at around 1,200 meters altitude in the Baoshan growing region as an example; the common processing method is washed, which helps preserve a clear and bright acidity as well as floral and fruity notes. For roasting, it is recommended to usea medium-slow roastto bring out a rounded mouthfeel and rich floral and fruity aromas. Specifically, when using a Yangjia 600g semi-direct-fire roaster, it is suggested to start with a drum temperature of 200°C, set the air vent to 3, adjust the heat to 160°C after 30 seconds while keeping the air vent unchanged, with the turning point occurring at around 1 minute and 33 seconds. When the temperature reaches 168°C, reduce the heat to 130°C and open the air vent to 4. After the stable dehydration phase, at around 8 minutes and 45 seconds, wrinkles and black spots appear on the bean surface, at which point the coffee aroma replaces the bread-roasting smell, indicating that first crack is approaching. When first crack begins at 9 minutes and 7 seconds, reduce the heat to 80°C, fully open the air vent to 5, and continue roasting until the exit temperature of 198°C. The first crack development lasts about 3 minutes. In cupping, Typica delivers a rich fruitiness with notes of melon and herbs, prominent nutty and milk chocolate flavors in the mid-palate, lively plum-like acidity in the finish, medium body overall with a full mouthfeel. As the temperature drops, the acidity and sweetness layers become distinct, with a lingering aftertaste of black tea and brown sugar.
For pour over, it is recommended to use 15 grams of coffee grounds with a 1:15 brew ratio, or adjust to 1:16 if you prefer a cleaner flavor profile. The V60 filter cone is recommended, with a water temperature of around 88°C to soften the acidity, and a grind size similar to fine sugar (80% passing through a #20 sieve). The specific method is as follows: bloom with 30 grams of water for 30 seconds, then pour to 125 grams in the first stage and pause, using a slow small stream in circular motion; continue pouring to 225 grams in the second stage, slightly increasing the flow rate to reduce the risk of channeling and over-extraction, with the total brew time controlled to around 2 minutes.
Catimor, on the other hand, is a hybrid variety cultivated to resist rust disease and increase yield. In 1959, Portuguese growers brought the Brazilian Bourbon mutation Caturra to East Timor, where it was crossed with Timor, a variety containing Robusta genes, successfully producing Catimor, which is highly resistant to disease and boasts strong productivity. Due to the serious threat of coffee leaf rust to global coffee-growing regions, international organizations actively promoted this variety. Starting in 1992, Nestlé introduced Catimor to Yunnan, where its high yield and disease resistance made it the dominant variety, purchased at market price. However, Catimor is not of pure Arabica lineage, with 25% of its genes derived from Robusta, which also limits its flavor expression. It often exhibits relatively thin aromas, a tendency toward astringency, pronounced bitterness, and moldy off-notes. Currently, the so-called “Yunnan small-bean coffee” on the market mostly refers to this improved variety.
For Catimor washed and processed at 1,200 meters altitude in Baoshan, it is recommended to usea light-to-medium or medium roastto balance its bold mouthfeel and off-flavor impurities. When using a Yangjia 800N roaster (300g capacity), it is advised to start with a drum temperature of 190°C, set the heat to 120, and the air vent to 3. The turning point occurs at around 1 minute and 40 seconds, and when the drum temperature reaches 145°C, adjust the air vent to 4; at 166°C, the bean surface turns yellow and grassy notes dissipate, entering the dehydration phase. At 188°C, reduce the heat to 60 and open the air vent to 5. Around 8 minutes and 37 seconds, wrinkles and black spots appear on the bean surface, and the coffee aroma becomes more apparent, signaling that first crack is near. First crack begins at 9 minutes and 00 seconds, and after developing for 3 minutes, the roast is finished at 198°C. In terms of cupping flavors, this variety enters the palate smoothly, with Asian herbal notes, bright acidity that stimulates saliva, decent complexity, and an aftertaste that reveals dark chocolate, honey, and cane sugar tones, with brown sugar notes emerging as it cools.
For pour over, it is also recommended to use 15 grams of coffee, with a 1:15 brew ratio, using the V60 filter cone and water temperature at 88°C, with a grind size similar to fine sugar (80% passing through a #20 sieve). The technique involves blooming with 30 grams of water for 30 seconds, then pouring in a small, slow circular motion to 125 grams and pausing. Once the water level drops, continue pouring to 225 grams, maintaining flow rate to avoid over-extraction, with total brew time around 2 minutes, helping to highlight a tea-like feel and balanced body.
Bourbon is a natural mutation of Typica, originating from the Yemeni Mocha round-seed variety. It was introduced to the French colony of Bourbon Island (now Réunion Island) by the French in 1708, hence its name. Compared to Typica, Bourbon offers richer aroma and flavor profiles, slightly higher yield, and is suited for cultivation at altitudes between 1,200 and 2,000 meters. However, it has weaker disease resistance and environmental adaptability, being sensitive to strong winds and heavy rain. Its top young leaves are green, hence it is also called Green-Tipped Coffee. The fruit ripens more slowly, with smaller berries but a higher fruit count. In 1952, the Yunnan Academy of Agricultural Sciences distributed Typica and Bourbon seeds to farmers in Ludian, Baoshan, followed by large-scale planting, which once formed extensive coffee forests along the Burma Road. A 1981 survey noted that 69% of the ancient coffee forest in Zhugula Village consisted of Bourbon.
Currently, Bourbon remains in the trial planting stage in Yunnan, with limited cultivation area and mostly experimental cultivation. Image
shows the varietal distribution in the early coffee forests of Zhugula Village. Due to its excellent flavor potential, further exploration of its performance at high altitudes and variations in processing methods is warranted. If its disease susceptibility can be overcome, Bourbon has the potential to become one of Yunnan’s premium coffee varieties in the future.
The above content is compiled by CoffeeHunters, a coffee news website.
