Africa
🇸🇱Sierra Leone Coffee
Sierra Leone is a small West African coffee producer, with both Robusta and Arabica grown. The country's coffee sector was devastated by civil war (1991-2002) but is recovering. Sierra Leone is also notable as the origin of Coffea stenophylla , a wild species that is being researched as a potential climate change adaptation crop.
Key Takeaways
- Sierra Leone's coffee sector was devastated by the civil war (1991-2002) but is recovering.
- Coffea stenophylla, a wild species rediscovered in West Africa in 2020 (including Sierra Leone), can grow at temperatures 6 degrees Celsius higher than Arabica and produces high-quality coffee.
- Sierra Leone receives 2,000 to 3,000mm of rainfall annually, one of the highest levels in the coffee world.
- The country is primarily a Robusta producer, with small amounts of Arabica.
Sierra Leone is a small West African coffee producer, with both Robusta and Arabica grown. The country's coffee sector was devastated by civil war (1991-2002) but is recovering. Sierra Leone is also notable as the origin of Coffea stenophylla , a wild species that is being researched as a potential climate change adaptation crop.
Sierra Leone is a small West African coffee producer, with both Robusta and Arabica grown. The country's coffee sector was devastated by civil war (1991-2002) but is recovering. Sierra Leone is also notable as the origin of Coffea stenophylla, a wild species that is being researched as a potential climate change adaptation crop.
300-900m
Climate
Sierra Leone's coffee grows in tropical conditions at elevations of 300 to 900 meters. Average temperatures range from 22 to 30 degrees Celsius. Annual rainfall of 2,000 to 3,000mm supports coffee cultivation, one of the highest rainfall levels in the coffee world.
Harvest
November - March
Processing
Washed, Natural
Rainfall
2,000-3,000mm annually with a wet season (May-November).
Soil
Lateritic and alluvial soils, rich in iron and organic matter.
Annual Production
Very small, approximately 20,000-40,000 60kg bags
Geography
Sierra Leone's coffee grows in the eastern and southern high...
History of Coffee Cultivation
Coffee was introduced to Sierra Leone during the colonial era. Production remained small throughout the 20th century. The civil war (1991-2002) devastated the agricultural sector. Since the war, international development organizations have supported coffee sector recovery. Sierra Leone is also notable for Coffea stenophylla, a wild species rediscovered in 2020 that can grow at higher temperatures than Arabica, making it a potential climate change adaptation crop.
Timeline of Coffee Production
Geography and Climate
Sierra Leone's coffee grows in the eastern and southern highland regions, including Kono, Kailahun, and Kenema districts.
Climate: Sierra Leone's coffee grows in tropical conditions at elevations of 300 to 900 meters. Average temperatures range from 22 to 30 degrees Celsius. Annual rainfall of 2,000 to 3,000mm supports coffee cultivation, one of the highest rainfall levels in the coffee world.
Rainfall: 2,000-3,000mm annually with a wet season (May-November).
Soil: Lateritic and alluvial soils, rich in iron and organic matter.
Major Producing Regions
Harvest and Processing
Harvest Season: November - March
Processing Methods
Coffee Varieties Grown
Cup Profile and Tasting Notes
Sierra Leonean coffee is primarily Robusta, known for its full body and earthy profile. Some Arabica is balanced and smooth. The country is most notable for wild Coffea stenophylla, which produces high-quality coffee at higher temperatures than Arabica.
Typical Tasting Notes
Production and Economic Importance
Annual Production: Very small, approximately 20,000-40,000 60kg bags
Coffee is a minor crop but provides income for smallholder farmers in eastern Sierra Leone.
Major Exporters
Sustainability and Climate
Climate Change Impacts: Climate change threatens coffee production, but the wild Coffea stenophylla found in Sierra Leone may offer adaptation potential.
Sustainability Initiatives
- •International development programs
- •Coffea stenophylla conservation research
Common Certifications
Facts and Culture
Regional Brewing Traditions: Coffee in Sierra Leone is typically brewed as instant coffee or filtered coffee and served sweet.
Interesting Facts
- •Sierra Leone's coffee sector was devastated by the civil war (1991-2002) but is recovering.
- •Coffea stenophylla, a wild species rediscovered in West Africa in 2020 (including Sierra Leone), can grow at temperatures 6 degrees Celsius higher than Arabica and produces high-quality coffee.
- •Sierra Leone receives 2,000 to 3,000mm of rainfall annually, one of the highest levels in the coffee world.
- •The country is primarily a Robusta producer, with small amounts of Arabica.
Common Misconceptions
- •Sierra Leone is not a major coffee producer, but it is important as the home of wild Coffea stenophylla.
- •The civil war devastated agriculture, but coffee production is recovering with international support.
Coffee Tourism
Travel to coffee regions in eastern Sierra Leone is possible but infrastructure is limited. Best time to visit is during harvest (November-March).
Famous Farms
Research Institutions
Related Book Chapters
- •Chapter 8: African Coffees
- •Chapter 2: Coffee Origins
- •Chapter 13: The Future of Coffee
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.
Origins & GeographyCoffea Arabica: The Specialty Coffee Species Explained
Arabica coffee (Coffea arabica) is a species of coffee plant native to the highland forests of Ethiopia and South Sudan. It is the most widely cultivated coffee species worldwide, accounting for approximately 60 to 70 percent of global coffee production. Arabica is prized for its complex flavor, refined acidity, and aromatic diversity, producing notes ranging from floral and citrus to chocolate and caramel depending on origin, variety, and processing.
Origins & GeographyCoffea Robusta: The Hard-Body Coffee Species Explained
Robusta coffee (Coffea canephora) is the second most cultivated coffee species after Arabica, accounting for approximately 30 to 40 percent of global coffee production. Native to sub-Saharan Africa, Robusta is hardier, more disease resistant, and grows at lower elevations than Arabica. It contains roughly twice the caffeine of Arabica and produces a heavier body, lower acidity, and more bitter cup profile.
Coffee ScienceCoffee Borer Beetle
<h2>Environmental Management and Control</h2><p>Control of <i>H. hampei</i> requires a multi-faceted approach, as the beetle's internal nesting protects it from standard contact insecticides. Biological control often involves the entomopathogenic fungus <i>Beauveria bassiana</i>, which is applied at a concentration of 1x10^9 spores per milliliter. The fungus penetrates the beetle's exoskeleton, leading to mortality within 4 to 7 days. Additionally, the introduction of the parasitoid wasp <i>Cephalonomia stephanoderis</i> has proven effective in Latin American plantations, as the wasp enters the berry to prey upon borer larvae. Post-harvest, meticulous sanitation of processing equipment and the use of GrainPro or hermetic storage bags prevent cross-contamination in the warehouse environment.</p>
ComparisonCold Brew Vs Cold Drip
Cold brew and cold drip are two distinct methods for preparing cold coffee without heat. Cold brew submerges ground coffee in standing water for 12-24 hours via full immersion. Cold drip (Dutch coffee) uses a drip tower to slowly pass cold water droplets through a coffee column over 3-8 hours, preserving delicate aromatics with high clarity.
ComparisonCold Brew Vs Iced Coffee
Cold brew and iced coffee may both be served cold over ice, but their chemical compositions and flavor profiles differ dramatically. Cold brew uses long room-temperature immersion (12-24 hours), suppressing volatile organic acids while producing a low-acid, sweet concentrate. Iced coffee (specifically Japanese flash brew) extracts hot water solubles rapidly before chilling instantly over ice, capturing delicate aromatics and vibrant acidity.
EspressoDialing In
<h2>Summary of Dialing In Variables</h2><table><thead><tr><th>Variable</th><th>Adjustment</th><th>Effect on Extraction</th></tr></thead><tbody><tr><td>Grind Size</td><td>Finer</td><td>Increases surface area, increases resistance, slows flow, increases extraction.</td></tr><tr><td>Dose Mass</td><td>Increase</td><td>Increases puck depth, increases resistance, slows flow, increases strength.</td></tr><tr><td>Yield</td><td>Increase</td><td>Increases the amount of solvent passing through, increases total extraction, decreases TDS (strength).</td></tr><tr><td>Temperature</td><td>Increase</td><td>Increases chemical solubility, accelerates the extraction of sugars and bitters.</td></tr></tbody></table>
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.
Coffee CultureFair Trade
Fair Trade is a certification system ensuring coffee farmers receive a minimum price floor for their crop, along with a community development premium. Fair Trade Certified coffee is produced by smallholder farmer cooperatives meeting social, environmental, and economic standards.
Coffee ScienceMicro-lot
A micro-lot represents a distinct, traceable quantity of coffee, typically limited to a volume between 1 and 40 bags of 60 kilograms. Unlike regional blends, micro-lots originate from a single harvest period, a specific botanical variety, or a designated plot of land—often referred to as a 'tablón' in Latin American estates. Production requires rigorous physical separation during the picking, pulping, and drying phases to preserve unique sensory profiles. These lots frequently undergo experimental processing, such as carbonic maceration or controlled fermentation with specific yeast strains like Saccharomyces cerevisiae. To qualify as a micro-lot, a coffee usually commands a cupping score of 87 points or higher on the Specialty Coffee Association (SCA) scale, reflecting exceptional clarity and complexity in flavor. The categorization enables the identification of specific terroir influences, where soil composition, shade canopy density, and localized microclimates (mesoclimates) converge to produce a profile that is unrepeatable in larger, aggregated lots.
Varietals & CultivarsRume Sudan Cultivar
Rume Sudan is an indigenous wild Coffea arabica variety from South Sudan crucial to global coffee genetics for its natural CBD resistance.
Sensory & TastingSca Coffee Flavor Wheel Guide
Developed with World Coffee Research, the SCA Flavor Wheel organizes coffee aromatics systematically. Learn how to navigate the flavor wheel like a professional sensory analyst.
Related Articles
Frequently Asked Questions
Sources
- •Davis, A.P. et al. (2021). 'Coffea stenophylla.' Nature Plants.
- •International Coffee Organization. Sierra Leone Country Profile. 2023.
- •Lyons, K.E. The Complete World of Coffee. Lyons Den Publishing. 2024.
- •Royal Botanic Gardens, Kew. Coffea stenophylla Research. 2020-2023.
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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
October 2, 2026
Sources & References
(4)Claims are cited to verifiable sources. Peer-reviewed research is marked.
- 1Davis, A.P. et al. (2021). 'Coffea stenophylla.' Nature Plants.
- 2International Coffee Organization. Sierra Leone Country Profile. 2023.
- 3Lyons, K.E. The Complete World of Coffee. Lyons Den Publishing. 2024.
- 4Royal Botanic Gardens, Kew. Coffea stenophylla Research. 2020-2023.
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.
Publisher
Lyons Den Publishing · Founded 2025 · San Diego, CA
Contact
lyonsdenpublishers@gmail.comIntelligent Recommendations
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