Arabica
Bourbon
Also known as: Bourbon Vermelho, Bourbon Amarelo, Red Bourbon, Yellow Bourbon
Bourbon is one of the two foundational Arabica varieties, alongside Typica . A natural mutation of Typica with a more compact growth habit and higher yield, Bourbon produces exceptional cup quality with complex sweetness and acidity. It is the parent of numerous important varieties including Caturra , Catuai , and Mundo Novo.
Key Takeaways
- Bourbon comes in three color variants: Red Bourbon, Yellow Bourbon, and (rarely) Orange Bourbon. The color refers to the ripe cherry.
- Yellow Bourbon, found primarily in Brazil, is believed to be a natural cross between Red Bourbon and Amarelo de Botucatu (a yellow Typica mutation).
- Bourbon coffee from El Salvador is so valued that the country has a 'Bourbon Rehabilitation' program to preserve heirloom Bourbon plantings.
- Pacas (a natural Bourbon mutation discovered in El Salvador in 1949) is one of the parents of Pacamara, a famous hybrid variety.
Bourbon is one of the two foundational Arabica varieties, alongside Typica . A natural mutation of Typica with a more compact growth habit and higher yield, Bourbon produces exceptional cup quality with complex sweetness and acidity. It is the parent of numerous important varieties including Caturra , Catuai , and Mundo Novo.
Bourbon is one of the two foundational Arabica varieties, alongside Typica. A natural mutation of Typica with a more compact growth habit and higher yield, Bourbon produces exceptional cup quality with complex sweetness and acidity. It is the parent of numerous important varieties including Caturra, Catuai, and Mundo Novo.
Origin
Ethiopia (ancestral origin). Cultivated on the island of Bourbon (now Reunion) in the Indian Ocean, where the mutation occurred, then introduced to the Americas by the French in the 18th century.
History
Bourbon is one of the two foundational Arabica varieties alongside Typica. French missionaries introduced Bourbon from Yemen to the island of Bourbon (now Reunion) in the early 18th century. From there, it spread to the Americas, particularly Brazil and Central America. Bourbon is prized for its superior cup quality compared to Typica, though it produces lower yields.
Discovery
Bourbon is a natural mutation of Typica that occurred on the island of Bourbon (now Reunion, a French territory in the Indian Ocean). The French introduced it to the Americas via Brazil in the 1860s. The mutation produced a more compact tree with higher yield and rounder, less angular beans than Typica.
Genetics and Lineage
Bourbon belongs to the Bourbon genetic group, one of the two ancient Arabica lineages. It is the parent of numerous important cultivars including Caturra, Catuai, and Villa Sarchi. Natural mutations have produced color variants: Red Bourbon, Yellow Bourbon, and Orange Bourbon.
Parent Varieties
Hybrid Status: Not a hybrid. Bourbon is a natural mutation of Typica. However, it is the parent of many important hybrids and mutations, including Caturra, Catuai, Mundo Novo, and Pacas.
Growth Characteristics
Tall tree with a conical shape, though more compact than Typica. Young leaves can be green or bronze (red and yellow Bourbon variants). Produces rounder, less angular beans than Typica. Branches grow at wider angles, creating a broader canopy.
Tree Size: Tall (2-4 meters at maturity), though more compact than Typica.
Yield: Moderate to high (approximately 20-30% more than Typica, but still lower than dwarf varieties like Caturra).
Disease Resistance: Susceptible to coffee leaf rust, coffee berry disease, and nematodes. No significant natural resistance, though some sub-varieties show marginally better tolerance.
Climate and Growing Conditions
Bourbon prefers high altitudes with cool temperatures, shade, and consistent moisture. It is more susceptible to disease than newer hybrids but rewards with exceptional cup quality at higher elevations.
Climate Preferences: Tropical highland climate with temperatures of 15-24 C. Prefers shaded conditions and well-distributed rainfall. Sensitive to extreme heat and drought.
Rainfall: 1,200-2,000mm annually, well-distributed.
Elevation Range: 1,000-2,000 meters
Processing Compatibility
Excellent with all methods. Washed processing highlights its clean, sweet, complex acidity. Natural processing enhances body and fruit sweetness. Honey processing is increasingly popular for Bourbon, producing a balanced cup.
Roasting Behavior
Bourbon beans are moderately dense and roast evenly. Medium roasts often produce the best balance of sweetness, acidity, and body. Darker roasts can mute its delicate complexity. High-grown Bourbon can handle slightly higher roast temperatures.
Cup Profile
Sweet, complex, and balanced. Known for a pronounced sweetness, deep fruit notes (berry, stone fruit), and bright but rounded acidity. Body is medium to full with a smooth, creamy mouthfeel. Among the most sought-after cup profiles in specialty coffee.
Acidity
Bright but rounded, often described as complex and layered. Citric and malic notes are common.
Sweetness
High, often described as caramel, brown sugar, or honey-like.
Body
Medium to full, smooth and creamy.
Common Defects
- •Susceptible to coffee leaf rust (roya)
- •Prone to over-fermentation if natural processing is not carefully managed
- •Can produce 'potato' defect in certain growing regions (Central Africa)
Brewing Recommendations
Versatile across brewing methods. Excellent as pour over for its complex sweetness and acidity. Works well as espresso for its balanced body and sweetness. Natural-processed Bourbon is exceptional for cold brew. Recommended brewing temperature: 90-96 C.
Countries Where Grown
Notable Farms
Interesting Facts
- •Bourbon comes in three color variants: Red Bourbon, Yellow Bourbon, and (rarely) Orange Bourbon. The color refers to the ripe cherry.
- •Yellow Bourbon, found primarily in Brazil, is believed to be a natural cross between Red Bourbon and Amarelo de Botucatu (a yellow Typica mutation).
- •Bourbon coffee from El Salvador is so valued that the country has a 'Bourbon Rehabilitation' program to preserve heirloom Bourbon plantings.
- •Pacas (a natural Bourbon mutation discovered in El Salvador in 1949) is one of the parents of Pacamara, a famous hybrid variety.
Frequently Asked Questions
Sources
- •World Coffee Research
- •Specialty Coffee Association
- •International Coffee Organization
- •Illy, A. 'Espresso Coffee: The Science of Quality' (2nd ed.)
Related Varieties
Bourbon Amarelo
Bourbon Amarelo is prized for its sweetness, complexity, and bright acidity. It has a medium body and notes of citrus, stone fruit, yellow fruit, honey, and...
ArabicaBourbon Vermelho
Bourbon Vermelho is known for its sweet, complex, and balanced cup with bright acidity, medium to full body, and notes of berry, stone fruit, chocolate, and...
ArabicaCatuai
Balanced and versatile. Typically produces a clean, sweet cup with notes of caramel, chocolate, and nuts (especially when naturally processed in Brazil). Washed Catuai from Central America shows brighter acidity with citrus and stone fruit notes. Less complex than Bourbon but consistently high quality.
ArabicaCaturra
Bright, clean, and sweet. Known for pronounced citric acidity, medium body, and notes of citrus, stone fruit, and caramel. Generally produces a more straightforward but vibrant cup than its parent Bourbon, with slightly less complexity but excellent clarity.
ArabicaTypica
Clean, sweet, and delicate. Known for floral aromatics, bright citric acidity, and a silky, tea-like body. Typically exhibits notes of citrus, jasmine, honey, and stone fruit. Among the most complex and elegant cup profiles of all Arabica varieties.
Related Encyclopedia Entries
Body
Body, also called mouthfeel, refers to the physical weight, texture, and viscosity of coffee as it is perceived in the mouth. It is a tactile sensation rather than a taste, ranging from thin and tea-like to thick and syrupy. Body is influenced by brewing method, coffee oils, suspended solids, roast level, and the variety and origin of the coffee.
Sensory & TastingCoffee Body Explained
Coffee body (mouthfeel) is dictated by total dissolved solids, lipids, and insoluble suspended particles. Understand the physics of tactile body in coffee.
Coffee ScienceCoffee Leaf Rust
Hemileia vastatrix belongs to the order Pucciniales and is an obligate biotrophic fungus, meaning it requires living host tissue to survive. The infection cycle begins when urediniospores are deposited on the abaxial (underside) surface of the coffee leaf, typically via wind or rain splash. Germination occurs only in the presence of free water—such as dew or rainfall—within a temperature range of 15°C to 28°C. Upon germination, the fungus enters the leaf through the stomata and establishes a mycelium that colonizes the internal tissue. The visual manifestation of the disease begins as small, chlorotic spots that expand into characteristic orange, powdery pustules. These pustules contain thousands of spores capable of further infection. The physiological impact includes a rapid reduction in photosynthetic capacity and the eventual abscission of the leaf. Severe cases lead to 'dieback,' where the plant's branches wither due to carbohydrate depletion, often resulting in the death of the tree or a total loss of the following year's crop.
Sensory & TastingCoffee Sweetness Profiles
Sweetness in coffee stems from green sucrose preservation, caramel oligosaccharides, and volatile aromatic furans. Discover how coffee sweetness develops.
Origins & GeographyEthiopian Coffee: The Birthplace of Arabica Coffee
Ethiopia is widely considered the birthplace of coffee, where the Coffea arabica plant originated in the highland forests of the southwest. Ethiopia remains one of the world's top coffee producers, known for extraordinary genetic diversity, distinctive regional cup profiles, and processing traditions that date back centuries. Regions like Yirgacheffe, Sidamo, Guji, and Harrar produce some of the most sought-after specialty coffees in the world, prized for their floral, citrus, and tea-like characteristics.
Coffee ScienceExtraction
Extraction is the process of dissolving soluble compounds from ground coffee into water, producing the beverage we know as coffee. During extraction, water pulls acids, sugars, lipids, carbohydrates, and melanoidins from the coffee grounds in a sequence that shapes flavor, body, and aroma.
How-ToHow To Choose Coffee Beans
Selecting exceptional coffee beans requires understanding roast dates, processing methods (washed, natural, honey), origin elevation, and flavor notes. Decode coffee bean bag labels with this expert guide.
Varietals & CultivarsLaurina Coffee Variety
Laurina is the legendary Bourbon Pointu from Réunion Island—a natural low-caffeine Arabica mutation with delicate peach, chamomile, and sugarcane flavors.
RoastingMaillard Reaction in Coffee: Browning & Flavor Science
The Maillard reaction is a non-enzymatic browning reaction between amino acids and reducing sugars that occurs during coffee roasting, beginning at approximately 140°C. Named after French chemist Louis-Camille Maillard, it produces hundreds of flavor and aroma compounds—including pyrazines, furans, and melanoidins—that define the complex taste, aroma, color, and body of roasted coffee. It is one of the most critical chemical processes in coffee roasting.
Varietals & CultivarsMundo Novo Coffee Variety
Mundo Novo is a natural Brazilian hybrid of Sumatra Typica and Red Bourbon known for high tree vigor, heavy body, and chocolatey cup profiles.
Varietals & CultivarsPacamara Coffee Variety
Pacamara is an El Salvadoran cross between Pacas and Maragogype known for its large bean size and extraordinary complex, savory-sweet cup profile.
Sensory & TastingSweetness
In physiological terms, sweetness in <i>Coffea arabica</i> is a multi-modal sensory response triggered by a complex matrix of chemical constituents. While green Arabica beans contain between 6% and 9% sucrose by dry weight—compared to 3% to 7% in <i>Coffea canephora</i>—the roasting process degrades approximately 97% to 99% of these sugars. The resulting sweetness perceived by the taster is a product of caramelization and the Maillard reaction. Specifically, the thermal degradation of sucrose yields glucose and fructose, which further react with amino acids to form furans, such as 4-hydroxy-2,5-dimethyl-3(2H)-furanone, contributing to caramel-like aromatics. The SCA Cupping Protocol utilizes a binary score for sweetness; each of the five cups must exhibit a clean, sweet character to receive a 2-point credit, totaling 10 points for a perfect set. This attribute is fundamentally linked to the metabolic health of the tree and precise harvest timing, where cherries typically reach 18% to 22% soluble solids on the Brix scale before picking.
Related Book Chapters
- •Chapter 4: Varietals & Cultivars
- •Chapter 2: Coffee Origins
Related Articles
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Keith E. Lyons
Author, Researcher & Coffee Educator
Keith E. Lyons is the author of The Complete World of Coffee and the publisher behind Lyons Den Publishing. A licensed trauma therapist turned specialty coffee writer, Keith blends scientific rigor with genuine passion for the craft of coffee.
Last Reviewed
August 10, 2026
Sources & References
(4)Claims are cited to verifiable sources. Peer-reviewed research is marked.
- 1World Coffee Research
- 2Specialty Coffee Association
- 3International Coffee Organization
- 4Illy, A. 'Espresso Coffee: The Science of Quality' (2nd ed.)
Authoritative References
Editorial Standards
- • Fact-checked against peer-reviewed coffee science research and industry standards.
- • Reviewed by the author with documented sources for every factual claim.
- • Updated regularly; the "Last Reviewed" date reflects the most recent verification.
- • Corrections are made promptly when new research or evidence emerges.
Our editorial process prioritizes accuracy, scientific rigor, and practical relevance for coffee enthusiasts and professionals alike.
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Lyons Den Publishing · Founded 2025 · San Diego, CA
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Bourbon Coffee Variety
Bourbon is one of the two foundational arabica varieties, named after Réunion Island (formerly Île Bourbon). It produces higher yields and a sweeter, more complex cup than Typica, with distinctive notes of chocolate, caramel, and red fruit that set the standard for specialty coffee quality.
Caturra Coffee Variety
Caturra is a natural dwarf mutation of Bourbon discovered in Minas Gerais, Brazil. Its compact size revolutionized high-density coffee farming, and its cup delivers classic Bourbon sweetness with brighter acidity, though it is highly susceptible to coffee leaf rust.
Typica Coffee Variety
Typica is the foundational arabica variety from which nearly all cultivated coffee descends. Originating in Ethiopia and Yemen, then carried to Java and the Americas, its tall trees and elongated cherries produce a clean, sweet, delicately floral cup that defined specialty coffee's earliest standards.
Villa Sarchi Coffee Variety
Villa Sarchi is a natural dwarf mutation of Bourbon discovered in Alajuela, Costa Rica. Its compact size suits high-density planting, and its cup retains classic Bourbon character: bright acidity, sweet caramel notes, and a clean finish.