Where Did Bourbon Coffee Seeds Originate and Spread?
Bourbon coffee seeds descend from a Typica mutation whose beans turned round instead of slender. French traders carried Yemen Mocha seed to Bourbon Island, now Réunion, in 1715, giving the variety its name. It reached Brazil and Central and South America in 1727 and St. Helena in 1732, and American specialty cupping tables often place Bourbon at the top.
Compared with Typica, Bourbon has broader leaves, denser growth and slightly higher yield, but a two-year harvest cycle keeps output low. Trees are pruned to about 150 centimeters for easier picking. Red and Yellow Bourbon share dark chocolate, nut and caramel base notes, while terroir adds distinct fruit and red-wine-like acidity.
Bourbon is an ancient coffee variety that arose from a mutation of Typica. Its beans are round and its flavor is elegant, making it a perennial champion among specialty coffees of the Americas. This article systematically reviews the origin and spread of Bourbon coffee, the characteristic differences between Red Bourbon and Yellow Bourbon, and the story of how French Mission Bourbon spread across Africa. It also provides detailed roasting suggestions and flavor profiles for three Bourbon beans: Brazil Red Bourbon, Brazil Queen, and Kenya Chania. Under different terroirs, Bourbon displays similar base notes of dark chocolate, nuts, and caramel, while microclimates and soil differences give rise to unique characteristics such as tropical fruit. Whether you are a beginner just getting into specialty coffee or a seasoned connoisseur wanting to understand the origins of varieties in depth, you will find practical reference here.
[Introduction]
After Typica was transplanted to Yemen in the early period (prehistoric times of coffee), a mutation occurred in which the bean shape changed from slender and pointed to round. In 1715, the French brought the round beans of Yemen Mocha to Bourbon Island off the east coast of Africa (renamed Réunion Island after the French Revolution), and it is from this that the name Bourbon derives. Thereafter, round Bourbon beans were passed on to Brazil and Central and South America in 1727, and in 1732 the British transplanted Yemen Mocha to the island of St. Helena (the later place of Napoleon's imprisonment), where what was planted was likewise round Bourbon beans. In cupping competitions for specialty coffee in the Americas, Bourbon is often the variety that takes first place.
Bourbon is a secondary species produced by a mutation of Typica, and together with Typica it ranks as one of the oldest extant coffee varieties. Its fruit turns bright red when ripe. Compared with Typica, Bourbon has broader leaves and grows more densely; although its yield is higher than Typica's, its harvest cycle is likewise two years, so it still belongs to the lower-yielding varieties. However, it has an outstanding mouthfeel, with acidity resembling red wine and a sweet aftertaste. The coffee beans are relatively large, uniform in size, and even and glossy in color. To make harvesting easier, farmers usually prune the trees to no more than 150 centimeters in height.
[Red Bourbon]
After the Red Bourbon coffee tree flowers and bears fruit, the color of the fruit undergoes a series of changes: green, slightly yellow, slightly orange, ripe red, and finally a more mature dark red, which is why some people also call it [Red Bourbon]. In fact, Red Bourbon is what we usually mean by Bourbon. Bourbon planted at high altitudes often has better aroma and brighter acidity, and when tasted it can even present a flavor reminiscent of red wine.
[Yellow Bourbon]
Yellow Bourbon, on the other hand, arose from a cross between Bourbon and another variety. Because of its lower yield and lower resistance to wind and rain, it has not been widely planted. However, when cultivated at high altitudes, its flavor performance is outstanding, and in recent years it has gradually become more common. Yellow Bourbon, that is, huang bourbon, bears yellow fruit when ripe. It was first discovered in Brazil and is currently mainly grown there. It is generally believed that it may have arisen from a mutation after a red-fruited Bourbon was crossed with a yellow-fruited Typica variant called "Amerelo de Botocatu."
[French Mission Bourbon]
In Africa, French missionaries known as Spiritans (from the Congregation of the Holy Spirit) played a key role in the spread of Bourbon. In 1841 the first mission was established on Réunion, and in 1859 a branch was set up in Zanzibar; starting from Zanzibar, branches were established in 1862 at Bagamoyo (on the coast of Tanzania, then called Tanganyika) and St. Augustine (Kikuyu, Kenya), and in 1893 another branch was established at Bura (Taita Hills, Kenya). The establishment of each mission was accompanied by the planting of coffee seeds brought from Réunion.
In 1899, seedlings cultivated at Bura were taken to another French mission at Saint Croix (near Nairobi), and in 1900 they were introduced to the Kilimanjaro region of Tanzania, where seeds were distributed to local residents willing to grow coffee. This was the origin of "Missionary Bourbon." Subsequently, the Kent variety was also introduced in 1920. Therefore, to this day, Tanzanian coffee is still mainly Bourbon and Kent.
The following all belong to the Bourbon variety:
[Brazil Red Bourbon]
On some estates in the Cerrado region of Minas Gerais state in southeastern Brazil, old Bourbon coffee is grown. The Cerrado plateau of western Minas and southern Minas are mostly above 1,100 meters in altitude, with diverse landforms, distinct dry and rainy seasons, large day-night temperature differences, and rich microclimates, making them suitable for cultivating elegant-flavored Red Bourbon and Yellow Bourbon and naturally making them the main producing areas of Brazilian specialty coffee.
Roast level: Medium roast
Recommended brewing method: Pour-over
Grind size: 4 (Fuji R440)
Water temperature: 88°C
Dripper: V60/KONO
Dry aroma: Nuts, cocoa
Mouthfeel: Low acidity, strong nuttiness, good chocolate sweetness and body
[Brazil Queen]
From Fazenda Rainha (Queen Farm), the estate covers 280 mu and is located in Vale da Grama, an ancient volcanic valley in Brazil. Fazenda Rainha is owned by the renowned and highly respected Carvalho Dias family. The four major estates under Carvalho Dias have won awards every year since the first Brazil COE competition in 1999, taking more than 12 awards over seven years; in 2004 they even swept the champion, 9th place, 11th place, and so on, among the many large and small estates in Brazil.
Roast level: Medium roast
Recommended brewing method: Pour-over
Grind size: 4 (Fuji R440)
Water temperature: 88°C
Dripper: V60/KONO
Dry aroma: Roasted hazelnut, spices
Flavor: Slight fruit acidity, nuts, creamy peanut, chocolate sweetness, high body.
[Kenya Chania]
In Kenya, what is commonly heard of is the K72 processing method and the two varieties SL28 and SL34. So naturally processed French Mission Bourbon is truly rare. The unique red volcanic soil of Chania Estate, combined with suitable coffee-growing temperatures and rainfall, plus an excellent natural environment, has created the unique flavor of the French Mission Bourbon from Chania Estate in Thika.
Roast level: Medium roast
Recommended brewing method: Pour-over
Grind size: 3.5 (Fuji R440)
Water temperature: 90°C
Dripper: V60
Dry aroma: Fermentation, dried fruit, vanilla
Flavor: On sipping, you can taste caramel, vanilla, and mixed fruits, with a solid juicy feel; the aftertaste has berries, rich jackfruit, and coffee floral notes, and the overall expression has the wild regional flavor of Africa.
Overall, the beans of the Bourbon varieties [Red Bourbon], [Yellow Bourbon], and [French Mission] are relatively similar in flavor, all with obvious notes of dark chocolate, cocoa, nuts, and caramel, soft acidity, and low bitterness.
Bourbon grown in different regions will show slight differences in flavor direction due to terroir factors such as microclimate, soil composition, and growing environment. Kenya's volcanic ash soil contains a higher proportion of phosphoric acid, which gives [French Mission] the acidity of tropical fruit while also continuing the flavor of Bourbon, making this bean's flavor more complex. That is all for today's sharing, and I hope it helps everyone~
Related recommendations: How to make pour-over with Brazilian Yellow Bourbon coffee beans and an introduction to the differences from Red Bourbon
The above content is compiled by CoffeeHunters, a coffee news website.
