Yunnan is a core coffee-producing region in China, and the composition of its planted varieties has always been a topic of interest among coffee enthusiasts. Currently, Yunnan coffee is not a single variety, but mainly consists of three major categories: Typica, Bourbon, and Catimor. Among them, Catimor has become the mainstay due to its disease resistance and high yield, while Typica and Bourbon are retained in local areas such as Baoshan. Although these three varieties all belong to the Arabica species, they differ significantly in flavor, yield, and maintenance difficulty. This article will detail their origins, characteristics, and distribution, and explore the genetic connections between Yunnan small-bean coffee and famous varieties such as Blue Mountain and Kona. Front Street Coffee will also combine the current situation of the producing area to interpret the flavor logic behind the varieties for you.
Typica and Bourbon are two classic high-quality varieties cultivated in Yunnan coffee in the early days. In 1991, the Catimor series was introduced from Kenya, which has stronger virus resistance and higher yield. They all belong to variants of the Arabica species (also known as small-bean species). Because Typica and Bourbon are very similar in morphology and habits, they are mostly mixed and planted locally.
Currently, the most widely planted variety in Yunnan is Catimor, and a small amount of Typica and Bourbon is still retained in the Baoshan area. Although they all fall under the Arabica species, these varieties have obvious essential differences.
Typica: The most classic high-quality Arabica variety, from which many commercial improved varieties are derived. It has excellent flavor performance and is recognized as a specialty coffee variety, but its yield is very low and it is susceptible to rust disease, requiring more manpower for management. Typica originated in Ethiopia and southeastern Sudan and is the most widely cultivated coffee variant in the Western Hemisphere. The plant is relatively robust, but it is not tolerant of strong light, and its yield in Hawaii is relatively high. The top leaves of Typica are copper-red, so it is called red-top coffee.
Bourbon: This variety originated from Typica. In 1708, it was planted by the French on Bourbon Island (now named Réunion) and gradually spread. Bourbon also has a beautiful aroma and rich taste. Its yield and growth vigor are slightly higher than Typica, and it is suitable for planting in areas from 1,200 to 2,000 meters, but its resistance to pests and diseases is weak, and it is also relatively sensitive to strong winds and heavy rainfall. Bourbon is the variant second only to Typica among small-bean coffee. The main branches initially grow upward at a 45-degree angle to the trunk and droop as the fruit load increases. The side branches have denser nodes, bear more fruit, and have higher yield. However, the berries are smaller and ripen more slowly. The young leaves of the Bourbon terminal bud are green, so it is called green-top coffee.
Catimor: Catimor is not purely of Arabica bloodline. It is a hybrid of the Timor species (belonging to the Robusta species) and Caturra (a variant of the Bourbon species), so it carries 25% Robusta bloodline. This bloodline also determines its flavor defects: the aroma is not rich enough, the overall bitterness is heavier, and it is prone to astringency and a relatively pungent musty taste.
The Pu'er region of Yunnan plants only the Catimor variety; Baoshan City introduced Typica and Bourbon as early as the 1950s, and locals call them "old varieties." Because the old varieties have lower resistance to pests and diseases and lower yields, they are more labor-intensive to manage, and there is not much advantage in the market purchase price, coffee farmers have switched to planting the new Catimor variety in recent years. From the botanical perspective of coffee, Yunnan small-bean coffee is genetically similar to the recognized best Jamaica Blue Mountain and Hawaii Kona.
The above content is compiled by CoffeeHunters, a coffee news website.
