Kenya Coffee School (KCS™) Intermediate Diploma manual —
Module 1: Coffee Botany & Advanced Agronomy (Pages 4–10)
under Barista Mtaani™ | GOOD Trade Certified Education.
☕ MODULE 1: COFFEE BOTANY & ADVANCED AGRONOMY
Duration: 6 Pages
Objective: To deepen learners’ understanding of coffee as a living plant — from its origin, biology, and varieties to advanced agronomic practices that influence cup quality and sustainability.
PAGE 4: THE ORIGIN AND DISCOVERY OF COFFEE
From Forest to Farm
Coffee’s story begins in the misty highlands of Ethiopia, where wild coffee plants (Coffea arabica) thrived under the shade of ancient trees. Legend tells of Kaldi, the goatherd who noticed his goats dancing after eating red cherries. His discovery led to the world’s first brewed beverage of alertness — a seed that would travel across continents.
By the 15th century, coffee had spread through Yemen’s port of Mocha, forming the foundation of Arab coffee culture. The seeds later reached India, Java, and the Caribbean, before establishing deep roots in East Africa — returning home with new genetic diversity and global significance.
PAGE 5: THE COFFEE PLANT — BOTANY AND BIOLOGY
Taxonomy
Coffee belongs to the family Rubiaceae, genus Coffea, which contains over 120 species. The most commercially important are:
- Coffea arabica (Arabica) – 60–70% of global production, prized for fine flavor and acidity.
- Coffea canephora (Robusta) – hardier, higher caffeine, and commonly used in blends and instant coffee.
- Coffea liberica (Liberica) – rare, fruity, floral, with large beans and unique character.
Anatomy of the Coffee Tree
- Roots: Taproot anchors the plant; lateral roots absorb nutrients.
- Stem & Branches: Support cherry production; pruning is key for productivity.
- Leaves: Green, opposite, photosynthetic engine of the plant.
- Flowers: White, jasmine-scented; bloom briefly after rains.
- Cherries: Ripen from green to red; each contains two seeds — the coffee beans.
Coffee thrives in altitudes of 1,200–2,000 meters, temperatures of 18–24°C, and rainfall of 1,500–2,500 mm annually.
PAGE 6: COFFEE SPECIES & VARIETIES IN KENYA
Kenyan Heritage and Breeding Programs
Kenya is globally recognized for high-altitude Arabica with bright acidity and complex flavor.
The Scott Agricultural Laboratories (SL) in the 1930s developed outstanding cultivars:
| Variety | Parentage | Cup Profile | Notes |
|---|---|---|---|
| SL28 | Bourbon-Typica | Fruity, winey, full-bodied | Drought tolerant |
| SL34 | Typica selection | Citrus, balanced, sweet | High altitude preference |
| Ruiru 11 | Catimor × SL28/34 hybrid | Balanced, disease-resistant | Compact size |
| Batian | Multi-line hybrid | Sweet, floral, bright | High yield, CBD resistant |
These varieties define Kenya’s coffee identity — each uniquely suited to specific elevations, soils, and microclimates.
PAGE 7: SOIL SCIENCE AND FERTILITY MANAGEMENT
The Foundation of Quality
Healthy soil equals healthy coffee.
Coffee prefers well-drained volcanic loam with pH 5.2–6.0 and high organic matter. Soil management involves three pillars:
- Organic Matter Recycling: Compost, coffee pulp, and manure to enhance microbial life.
- Soil Testing & Targeted Fertilization: Balanced N-P-K (Nitrogen–Phosphorus–Potassium) with micronutrients (Boron, Zinc, Magnesium).
- Erosion Control: Terracing, mulching, and cover crops prevent nutrient loss.
Shade and Agroforestry
Integrating shade trees like Grevillea robusta and Albizia spp. regulates microclimate, conserves moisture, and enriches biodiversity.
This approach aligns with GOOD Trade Certification’s Green Standards for climate resilience.
PAGE 8: WATER USE, IRRIGATION & CLIMATE ADAPTATION
Water and Drought Management
While coffee is rain-fed in most Kenyan regions, irrigation is critical during prolonged dry spells. Techniques include:
- Drip Irrigation: Efficient, reduces fungal risk.
- Mulching: Retains soil moisture and suppresses weeds.
- Rainwater Harvesting: Simple tanks or ponds sustain nurseries and young plants.
️ Climate Smart Farming
Rising temperatures and erratic rains demand adaptive measures:
- Planting Batian and Ruiru 11 for disease tolerance.
- Promoting shade-grown systems to lower leaf temperature.
- Establishing soil carbon monitoring and biochar programs for mitigation.
Coffee farmers become climate stewards, protecting ecosystems while safeguarding flavor integrity.
PAGE 9: PEST & DISEASE MANAGEMENT
Integrated Pest Management (IPM)
The main threats to Kenyan coffee are:
- Coffee Berry Disease (CBD) – managed via resistant varieties and copper fungicides.
- Leaf Rust (CLR) – prevented through pruning, spacing, and resistant cultivars.
- Coffee Berry Borer (CBB) – controlled with hygiene, biological traps, and timely harvesting.
IPM combines biological, cultural, and chemical strategies — reducing pesticide use while preserving biodiversity.
Pruning and Canopy Management
Regular pruning rejuvenates productivity. Key systems:
- Single Stem (Kenyatta method)
- Multi-Stem (Ruiru system)
- Stumping and Sucker Management after every 3–4 years to restore vigor.
Proper canopy balance ensures sunlight penetration and airflow — improving cherry ripening and reducing fungal infection.
PAGE 10: CUP QUALITY IMPACT & LAB ACTIVITY
☕ From Soil to Cup
Every agronomic decision echoes in the cup. Nutrient imbalance, poor pruning, or inadequate shade can distort cup clarity. Healthy plants yield beans with higher sugars and lipids — precursors of sweetness and aroma.
| Agronomic Factor | Cup Influence |
|---|---|
| Soil Nutrition | Sweetness & body |
| Altitude | Acidity & complexity |
| Water Stress | Fruitiness or harshness |
| Shade | Balance & mouthfeel |
Lab Activity
- Leaf & Soil Analysis: Students collect samples from shaded vs unshaded plots.
- Cupping Comparison: Evaluate cup attributes of each sample (aroma, acidity, body, aftertaste).
- Reflection Report: Link agronomic practices to flavor outcomes.
Reflection
“In the roots of the coffee tree lies the destiny of the cup.”
At KCS™, our baristas learn not only how to brew but also how to understand the plant — bridging the gap between the farmer’s soil and the consumer’s cup.
✅ End of Module 1 (Pages 4–10)
Next: Module 2 – Advanced Processing Technology
Excellent ☕ — let’s continue building your Kenya Coffee School (KCS™) Intermediate Diploma in Specialty Coffee & Barista Science (2026–2027).
Below is the full 7-page Module 2, continuing from page 11 through page 17, written in the same professional KCS™ voice, academic yet practical.
☕ MODULE 2: ADVANCED PROCESSING TECHNIQUES
Duration: 7 Pages
Objective: To equip learners with scientific and technical knowledge of post-harvest coffee processing — transforming cherries into green coffee through innovation, microbiology, and sensory precision.
PAGE 11: INTRODUCTION TO COFFEE PROCESSING
From Cherry to Green Bean
Processing is the bridge between the farm and the roaster. It determines how the bean’s chemical potential is unlocked. At this stage, coffee transitions from fresh fruit to stable, aromatic raw material.
Every step — fermentation, drying, and storage — influences flavor, aroma, and shelf life.
⚙️ The Processing Chain
- Harvesting: Selective picking of ripe red cherries.
- Sorting: Removal of underripes, overripes, and defects.
- Depulping: Separation of skin and mucilage from parchment.
- Fermentation & Washing: Microbial breakdown of mucilage.
- Drying: Reduction of moisture to 10–12%.
- Hulling & Storage: Removal of parchment to produce green coffee.
In specialty coffee, these steps are not just routine — they are craft guided by microbiology, temperature, and time.
PAGE 12: WASHED (WET) PROCESS
The Kenyan Standard
Kenya’s signature clarity and acidity come from the washed process.
Ripe cherries are pulped, fermented, washed, and sun-dried.
Steps:
- Pulping: Using drum or disc pulpers within 12 hours of harvest.
- Fermentation: 12–36 hours in clean water tanks.
- Washing: Channels remove mucilage; lighter beans float away.
- Soaking: Beans rest 12–24 hours to enhance acidity.
- Drying: Sun-dried on raised beds for 10–14 days.
Cup Profile: Bright, citrusy, winey with sparkling acidity.
Control Factors: Temperature (20–30°C), microbial activity, water pH.
Innovation Note:
Modern wet mills now use Eco-Pulpers reducing water usage by up to 80% — aligning with GOOD Trade’s Green Water Initiative.
PAGE 13: NATURAL (DRY) PROCESS
☀️ Simplicity and Complexity Combined
In the natural process, cherries dry whole with pulp intact. No fermentation tanks are used.
Procedure:
- Harvest ripe cherries only.
- Spread thinly on raised beds for airflow.
- Turn regularly to avoid mold and uneven drying.
- Dry to 10–12% moisture, then hull mechanically.
Cup Profile: Fruity, heavy-bodied, sweet with notes of berries and jam.
Challenges: Uneven drying and risk of ferment defects if not managed precisely.
Environmental Benefit: Water-free process; ideal for semi-arid zones.
Quality Control Tip
Use a digital moisture meter daily and record results. A difference of 1% in final moisture can change storage stability dramatically.
PAGE 14: HONEY PROCESS & SEMI-WASHED VARIANTS
The Sweet Middle Ground
The honey process removes the cherry skin but retains varying amounts of mucilage during drying — creating unique sensory expressions between washed and natural.
| Type | Mucilage Retained | Flavor Profile |
|---|---|---|
| White Honey | Minimal | Clean, crisp, mild sweetness |
| Yellow Honey | Moderate | Balanced, honeyed sweetness |
| Red Honey | Heavy | Syrupy, fruity |
| Black Honey | Maximum | Intense, fermented, deep body |
Key Variables: Drying time, bed temperature, and turning frequency.
Ideal Conditions: Humidity <60%, temperature 25–30°C.
Cup Profile: Sweet, rounded, complex; lower acidity than washed but more balance than natural.
PAGE 15: ANAEROBIC AND EXPERIMENTAL FERMENTATION
The Science of Controlled Fermentation
Anaerobic processing involves sealing coffee in airtight tanks where oxygen is absent.
Microbes like yeast and lactic acid bacteria dominate, creating distinct acids and flavor compounds.
Steps:
- Cherries or pulped beans placed in sealed tanks.
- Fermentation under CO₂ pressure for 24–96 hours.
- Monitoring of pH, temperature, and pressure.
- Controlled drying after fermentation.
Cup Profile: Exotic notes — tropical fruit, spices, complex acidity, velvety texture.
⚗️ Microbial Management
Students must learn to measure:
- pH Drop Rate: Indicates microbial activity.
- Brix (sugar) Levels: Monitors fermentation progress.
- Temperature: Optimal at 25–30°C for lactic fermentation.
Lab Exercise:
Students design a 48-hour anaerobic test using local SL28 cherries and record temperature and pH changes.
PAGE 16: WASTE MANAGEMENT & ENVIRONMENTAL RESPONSIBILITY
Beyond the Bean
Processing generates high organic waste — pulp, mucilage, and water effluent.
Responsible management preserves ecosystems and adds value.
Innovations:
- Coffee Pulp Composting: Converts waste into organic fertilizer.
- Biogas Digesters: Turn mucilage waste into cooking energy.
- Water Recycling Systems: Reduce freshwater use by 70%.
- Coffee Waste By-products: Briquettes, cement additives, biodegradable packaging.
These innovations are central to KCS™’s sustainability ethos and GOOD Trade’s Circular Coffee Economy model.
Case Study – Nyeri Cooperative
Implemented zero-discharge systems, reduced effluent by 90%, and increased farmer income via organic fertilizer sales.
PAGE 17: SENSORY LINK & PRACTICAL ACTIVITY
☕ From Fermentation to Flavor
Processing is chemistry in motion — every microbial decision changes the cup. Students learn to taste fermentation through structured cupping.
| Process | Acidity | Body | Sweetness | Common Flavors |
|---|---|---|---|---|
| Washed | High | Medium | Clean | Citrus, floral |
| Natural | Low | Heavy | Sweet | Berry, winey |
| Honey | Medium | Medium | Balanced | Caramel, fruity |
| Anaerobic | Variable | Velvety | Exotic | Tropical, spicy |
Practical: Micro-lot Processing Simulation
- Split a 10 kg cherry sample into four batches (washed, natural, honey, anaerobic).
- Process each batch using assigned method.
- Record data (time, temperature, pH).
- Cupping session comparing outcomes.
Learning Outcome:
Students understand how process variables = cup variables — mastering control, not chance.
Reflection
“Processing is not just what happens after harvest — it’s how we write the flavor language of coffee.”
✅ End of Module 2 (Pages 11–17)
Next: Module 3 – Green Coffee Science & Quality Control (Pages 18–23)
Excellent ☕ — we now continue with Module 3 (Pages 18–23) of the
Kenya Coffee School (KCS™) Intermediate Diploma in Specialty Coffee & Barista Science (2026–2027).
This section dives deep into Green Coffee Science & Quality Control, where the art of production meets scientific evaluation.
☕ MODULE 3: GREEN COFFEE SCIENCE & QUALITY CONTROL
Duration: 6 Pages
Objective: To enable learners to professionally evaluate, classify, and preserve green coffee quality through standardized grading, sensory calibration, and modern technology.
PAGE 18: UNDERSTANDING GREEN COFFEE QUALITY
The Essence of Quality Control
After processing, coffee enters its most fragile stage — green bean storage and trade.
Here, invisible variables like moisture, density, and defects dictate how well coffee will roast, store, and taste.
Quality control is therefore a scientific process of verification:
- Physical inspection (bean size, color, uniformity)
- Sensory evaluation (aroma, defects, flavor)
- Data tracking (moisture %, density, traceability)
The goal is consistency — ensuring that what farmers promise is what roasters receive, and what baristas brew remains true to origin.
The Q Factor
Every specialty coffee is defined by a Quality (Q) Score, determined by trained Q-Graders using the SCA cupping form.
Scores above 80/100 indicate “specialty grade”; below 80 are commercial grade.
KCS™ introduces these standards early to build analytical confidence in every student.
PAGE 19: COFFEE GRADING SYSTEMS
Kenyan Grading Standards
Kenya uses a unique screen-size grading system, ensuring uniform roasting and pricing.
After milling, coffee is sieved into distinct grades:
| Grade | Screen Size | Description |
|---|---|---|
| AA | 18 (7.2 mm) | Large beans, premium cup, highest price |
| AB | 15–16 | Medium-large, balanced flavor |
| PB (Peaberry) | Single round bean | Intense, concentrated cup |
| C | 14 | Smaller beans, lighter body |
| E | Elephant beans (two fused) | Rare, irregular |
| TT | Light density from AA/AB | Lighter beans, lower density |
| T | Tiny, broken pieces | Often blended |
| MH / ML | Mbuni (Natural coffee) | Dried whole, earthy flavor |
Each grade has its market niche, but cup quality still overrides bean size in the specialty trade.
Global Systems
- Latin America: Strictly Hard Bean (SHB), High Grown (HG)
- Brazil: NY 2/3 grading, based on defects per 300 g sample
- Asia: Screen size + moisture and defect tolerance
Kenyan students must learn both local and international systems to trade confidently across markets.
PAGE 20: PHYSICAL EVALUATION AND DEFECT ANALYSIS
⚙️ Sample Evaluation
A 350 g sample is the standard for physical grading. Students inspect beans for:
- Color uniformity
- Size and shape consistency
- Defects (primary and secondary)
- Cleanliness and odor
Common Primary Defects:
- Black beans
- Sour beans
- Fungal or moldy beans
Secondary Defects:
- Broken, chipped, or insect-damaged beans
- Partial discoloration
- Shells or husks
Each defect type lowers the potential cup score.
High-end lots allow zero primary defects and max five secondary defects per 350 g sample.
Laboratory Tools
- Digital moisture meter
- Density meter or floating test
- Sieves for size grading
- Black light lamp to reveal hidden mold contamination
PAGE 21: MOISTURE, DENSITY & STORAGE SCIENCE
Moisture and Water Activity
Proper moisture (10–12%) prevents mold and ensures even roasting.
Too high → risk of fungal growth.
Too low → brittle beans and faded aroma.
Water Activity (Aw):
Measured on a 0–1 scale. Specialty standard: Aw 0.50–0.60.
This determines how much energy microbes have to grow in stored beans.
️ Density
High-density beans roast more evenly and retain acidity.
Kenyan SL28 and SL34 often have exceptionally high densities due to altitude and slow maturation.
Density testing involves a 100 ml volume test or float test.
Storage and Aging
Ideal conditions:
- Temp: 18–22°C
- RH: 55–60%
- Oxygen-free packaging (GrainPro or vacuum bags)
- Rotational stock system (FIFO)
Beans stored well maintain flavor for 8–12 months.
Poorly stored beans become woody, flat, or papery — a common cause of quality loss between harvest and export.
PAGE 22: TRACEABILITY & TECHNOLOGY
Coffee Traceability Systems
Modern specialty coffee thrives on transparency.
Traceability links farm → wet mill → dry mill → exporter → roaster → barista.
Digital Tools in Traceability:
- Blockchain Platforms: Immutable data of origin, lot, and quality.
- QR Codes on Bags: Reveal farm name, altitude, process, and cupping score.
- Mobile Apps: Used by cooperatives for live quality data input.
Quality Control Automation
- Moisture sensors connected to IoT systems.
- Data-driven sorting machines using optical cameras.
- AI-based grading for defect identification.
GOOD Trade Digitalization Pillar:
KCS™ trains baristas to understand digital traceability so they can speak the same data language as exporters and roasters worldwide.
PAGE 23: CUPPING AND SENSORY CALIBRATION PRACTICAL
☕ From Data to Taste
Green bean analysis only tells half the story — the rest is in the cup.
Cupping allows students to confirm how physical quality translates to flavor.
Standard Setup:
- 8.25 g coffee / 150 ml water (93°C)
- Grind size: medium-coarse
- Break crust at 4 minutes
- Slurp to aerate evenly
Attributes Evaluated (SCA): Aroma | Flavor | Aftertaste | Acidity | Body | Balance | Sweetness | Uniformity | Clean Cup
Practical: Defect Cupping Lab
Students compare:
- Perfect AA beans
- Sample with 10% black beans
- Sample with 5% over-fermented beans
Observation Goal: Identify how physical defects alter flavor (e.g., bitterness, harshness, earthy notes).
Reflection
“A great cup begins with invisible science — precision in moisture, integrity in handling, and honesty in grading.”
✅ End of Module 3 (Pages 18–23)
Next: Module 4 – Roasting Science & Profile Development (Pages 24–32)
Perfect — continuing the Kenya Coffee School (KCS™) Intermediate Diploma in Specialty Coffee & Barista Science (2026–2027), here is
☕ MODULE 4: ROASTING SCIENCE & PROFILE DEVELOPMENT
Duration: 9 Pages (Pages 24–32)
Objective: To develop professional roasting skills — from understanding heat transfer and chemical reactions to designing roast profiles that unlock unique flavor expressions in specialty coffee.
PAGE 24: INTRODUCTION TO COFFEE ROASTING
Roasting is where green coffee transforms into the aromatic, flavorful beans we love.
It’s both an art and a science — balancing time, temperature, and sensory judgment.
Learning Goals:
- Understand heat transfer in roasting.
- Learn coffee’s chemical transformation stages.
- Identify roast levels and defects.
- Design and record roast profiles for consistency.
Roasting defines coffee’s flavor, aroma, and mouthfeel, acting as the “translator” between the farmer’s work and the barista’s craft.
PAGE 25: THE SCIENCE OF HEAT TRANSFER
3 Modes of Heat in Roasting:
- Conduction — direct contact (drum to bean)
- Convection — hot air circulation (fluid-bed roasters)
- Radiation — heat energy emitted from hot surfaces
⚙️ Key Phases in a Roast:
- Drying Phase (0–5 mins)
- Moisture reduces from 10–12% to ~2%.
- Beans change from green → pale yellow.
- Smell: hay or grassy.
- Maillard Phase (5–9 mins)
- Amino acids react with sugars → browning begins.
- Aromas: bread, caramel, nuts.
- This stage develops sweetness and body.
- First Crack (195°C–205°C)
- Bean expansion due to internal vapor pressure.
- Audible “crackling” — a key sensory cue.
- Roast level begins to determine cup profile.
- Development Phase (Post-First Crack)
- Flavor compounds stabilize.
- Control here defines acidity vs. body balance.
- Target 15–20% of total roast time for development.
PAGE 26: CHEMICAL CHANGES IN ROASTING
☕ Inside the Bean:
- Chlorogenic acids → breakdown forms quinic and caffeic acids (acidity control).
- Sucrose caramelization → adds sweetness and color.
- Maillard Reaction → creates melanoidins (brown pigments, aroma).
- Carbon dioxide (CO₂) builds up — later released during degassing.
Roast Color and Agtron Scale:
| Roast Level | Agtron Number | Characteristics |
|---|---|---|
| Light | 75–85 | Bright acidity, origin clarity |
| Medium | 65–75 | Balance of sweetness & acidity |
| Medium-Dark | 55–65 | Fuller body, caramel tones |
| Dark | 45–55 | Smoky, bitter, low acidity |
PAGE 27: ROASTER TYPES AND EQUIPMENT
⚙️ Drum Roaster (e.g., Probat, Giesen)
- Uses conduction + convection.
- Ideal for artisanal and specialty use.
- Manual control over airflow and gas pressure.
️ Fluid-Bed Roaster (e.g., Loring, Sivetz)
- Air carries beans — faster, cleaner roasting.
- More energy-efficient and consistent.
Sample Roaster
Used for quality control, training, and pre-production batches (50–200g).
Essential Tools:
- Thermocouples for bean & air temperature
- Data logging software (Cropster, Artisan)
- Timer & scale for roast consistency
- Color meter for post-roast evaluation
PAGE 28: ROAST CURVE AND PROFILE MANAGEMENT
Every roast tells a story through its temperature-time curve.
Professional roasters manage this curve to achieve flavor repeatability.
The Roast Curve Has Three Key Zones:
- Charge to Dry End — controls bean structure and uniformity.
- Dry End to First Crack — determines sweetness and complexity.
- First Crack to Drop — shapes development and mouthfeel.
Rate of Rise (RoR)
Represents how fast temperature changes over time.
A smooth, declining RoR indicates a stable, controlled roast.
Fluctuations or “crashes” cause baked or uneven flavors.
Recording Roast Data:
Students at KCS™ learn to record:
- Batch size
- Charge temperature
- Turning point
- Dry end time
- First crack time
- Drop temperature
- Total roast time
- Development percentage
Consistency = professionalism.
PAGE 29: FLAVOR DESIGN AND CUP CHARACTERISTICS
Light Roast Profile:
- Target Origin Clarity
- Retains acidity & floral notes (ideal for SL28, Geisha, Yirgacheffe)
- Shorter roast, lower development ratio
Medium Roast Profile:
- Balanced sweetness & aroma
- Suitable for espresso and filter
- Highlight body and complexity
Dark Roast Profile:
- Emphasizes bittersweet, heavy body
- Lower perceived acidity
- Ideal for milk-based beverages
Flavor Mapping Exercise (Class Activity):
Students roast one Kenyan AA, one Brazilian Natural, and one Ethiopian Washed.
They document aroma, body, and aftertaste changes across three roast levels.
PAGE 30: ROAST DEFECTS & TROUBLESHOOTING
| Defect | Cause | Cup Result | Correction |
|---|---|---|---|
| Baked | Too slow during Maillard or development | Flat, dull, cardboardy | Increase heat earlier, avoid stalling |
| Scorched | Excessive drum heat | Burnt patches | Lower charge temp, ensure even rotation |
| Tipped | Uneven heat flow | Bitter edges, dark tips | Check airflow, rotation speed |
| Underdeveloped | Too short development | Sour, grassy, thin | Extend post-crack phase |
| Overdeveloped | Too long or too hot | Bitter, ashy, low acidity | Drop earlier |
Students conduct defect-tasting sessions to identify and correct each issue — mastering sensory diagnosis.
PAGE 31: POST-ROAST HANDLING & DEGASSING
Degassing
After roasting, CO₂ must escape before packaging.
- Rest light roasts: 12–24 hrs
- Medium: 24–48 hrs
- Dark: 48–72 hrs
Packaging Options:
- Valve bags: allow CO₂ release, prevent oxygen entry
- Nitrogen flushing: used for high-end export lots
- One-way degassing valves: preserve freshness for up to 8 weeks
️ Storage:
- Ideal: Cool (20°C), dry, no direct sunlight
- Avoid freezing unless sealed and vacuum-packed
PAGE 32: DIGITAL ROAST PROFILING & AUTOMATION
Modern Technology in Roasting
- Cropster / Artisan software for real-time logging
- Loring Smart Roasters: low-emission, fully automated
- AI Prediction Tools: forecast curve outcomes and optimize heat control
Sustainable Roasting
- Energy recovery systems reuse exhaust heat
- Electric & induction roasters reduce carbon footprint
- Data logging supports traceability for GOOD Trade Certification
Practical Assignment:
Students create and document two roast profiles:
- Filter roast (light-medium)
- Espresso roast (medium-dark)
They cup both and compare flavor evolution, applying SCA sensory standards.
“Roasting is where science meets soul — a dialogue between bean and flame, guided by precision and passion.”
✅ End of Module 4 (Pages 24–32)
Next up: Module 5 – Brewing Science & Extraction Mastery (Pages 33–42)
