Coffee Terminology MoC¶
Coffee terminology spans the biological, chemical, agricultural, sensory, and commercial dimensions of coffee — from the botany of the Coffea genus through extraction physics to the vocabulary of professional tasting and international trade. This MOC organises terminology notes by domain, linking to atomic articles for each concept. For an alphabetical index of all terms, see Coffee Glossary MOC.
Deep Dives¶
| Article | What it covers |
|---|---|
| Coffee Species | Arabica, Robusta, Liberica, Excelsa, Stenophylla compared |
| Coffee Cherry Structure | Exocarp, mesocarp, endocarp, silverskin, endosperm |
| Coffee Plant Anatomy | Root, stem, leaf, flower, and fruit structures |
| Coffee Varietals and Cultivars | Variety classification and key commercial cultivars |
| Coffee Degassing and Staling | CO₂ release post-roast and staling pathways |
| Coffee Qualities | Grading systems: Kenyan, Colombian, Brazilian, Ethiopian |
| Extraction Yield | TDS, extraction percentage, and the Brewing Control Chart |
| Brew Ratio | Coffee-to-water ratios by brew method |
| Caffeine | Caffeine chemistry, half-life, and physiological effects |
Coffee Plant and Production¶
Botany: Coffee Species | Coffee Cherry Structure | Coffee Plant Anatomy | Coffee Varietals and Cultivars | Altitude and Elevation | Coffee Belt 1 | Coffee Diseases and Pests
Processing Methods¶
Wet and dry: WashedWet Processing | NaturalDry Processing | HoneyPulped Natural Processing | Wet-Hulling | Experimental Processing | Fermentation 1
Roasting¶
Thermal transformation: Roast Levels | First Crack and Second Crack | Roast Phases | Maillard Reaction and Caramelization | Coffee Degassing and Staling | Common Defects
Brewing Methods¶
Preparation formats: Espresso 1 | Pour Over 1 | Immersion | Immersion Brewing 1 | Cold Brew 1 | AeroPress 1 | Moka Pot | SiphonVacuum Pot
Brewing Science and Variables¶
Extraction physics: Grind Size 1 | Brew Ratio 1 | Water Quality 1 | TDS and Extraction Yield | Caffeine
Espresso Advanced Topics¶
Espresso depth: Crema 1 | Pre-infusion 1 | Pressure and Bars | Espresso Yield and Ratio | Tamping 1 | Channeling 1 | Espresso Machine Types | Temperature Stability
Grinding and Particle Science¶
Grind mechanics: Grinder Types | Portafilter and Baskets | Filters | Coffee Scales | Thermometers and Temperature Control | Grind Consistency | Particle Distribution
Brewing Techniques and Troubleshooting¶
Variables: Water Temperature 1 | Extraction Time | Agitation | Over-extraction and Under-extraction
Sensory Evaluation¶
Core attributes: Cupping Protocol | Acidity | BodyMouthfeel | Sweetness | Balance | Aroma 1 | AftertasteFinish
Chemistry: Coffee Flavor Wheel | Organic Acids | Chlorogenic Acids | Sugars and Carbohydrates | Lipids and Oils | Phenolic
Defects: Potato Defect | RioRioy
Milk-Based Drinks¶
Milk science: Milk Steaming and Texturing | Microfoam 1 | Milk Drinks 1 | Latte Art
Quality and Grading¶
Grading systems: Specialty Coffee Grading | Screen Size Grading | Q Grading | Defect Grading | Regional Grading Systems | Cup of Excellence | Coffee Qualities
Growing Conditions and Terroir¶
Environment: Coffee Bean Structure | Soil Types | Climate and Weather | Shade Growing
Sourcing and Trade¶
Supply chain: Single Origin vs Blends | Fair Trade and Direct Trade 1 | Direct Trade | Third Wave Coffee 1 | Certifications | Cooperatives
Coffee Economics¶
Markets: Coffee Commodities Market | Coffee Economics
Related MOCs¶
- Coffee Glossary MOC — Alphabetical index of all terms
- Brewing Methods MOC — Full brewing methods reference
- Coffee Processing MOC — Processing methods in depth
- Sensory Science MOC — Tasting, cupping, and flavour science
- Coffee Equipment MOC — Equipment reference
Essential Resources¶
Books: The World Atlas of Coffee (Hoffmann) · The Craft and Science of Coffee (Folmer) · Coffee Tasting & Grading (various SCA publications)
Online: SCA Glossary of Terms · World Coffee Research Vocabulary · Perfect Daily Grind terminology guides
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