tags: [] - MOC - coffee/skills - coffee/business aliases: - Barista knowledge domains - Coffee barista knowledge
Barista Knowledge Base¶
Technical ability without understanding is fragile. A barista who knows why espresso channels, why water alkalinity blunts acidity, and what drives Ethiopian floral notes can adapt, troubleshoot, and improve — rather than repeat. This note maps the knowledge domains that underpin barista excellence. See Barista Skills /Barista Skills Development MOC for the full framework.
Coffee Fundamentals¶
The coffee plant: Coffee Species | Coffee Varieties | Growing Conditions | Cherry Anatomy | Flowering and Ripening
Production chain: Coffee Cultivation | Harvesting Methods | Processing Methods MOC | Milling and Sorting | Green Coffee Storage | Coffee Shipping
Roasting: Roasting Basics | Roast Levels | Roast Development | Roasting Variables | Roast Defects
Coffee Science¶
Extraction chemistry: Solubility | Extraction Yield | Total Dissolved Solids | Extraction and Strength | Brew Ratio
Flavour chemistry: Maillard Reaction | Caramelisation | Acids in Coffee | Volatile Compounds | Lipids and Body
Water chemistry: TDS | Hardness | Alkalinity | pH | Mineral Composition
Origin Knowledge¶
Major origins:
| Origin | Character |
|---|---|
| ../Coffee Geography/Ethiopia | Birthplace of coffee; floral, berry complexity |
| Kenya | Bright acidity, winey, blackcurrant |
| Colombia | Balanced, sweet, clean |
| Brazil | Nutty, chocolatey, lower acidity |
| Guatemala | Complex, balanced, chocolatey |
| Costa Rica | Clean, bright; honey processing focus |
| Indonesian Coffee | Earthy, heavy body; wet-hulled character |
| Yemen | Wild, complex, fruity |
Origin characteristics: Terroir | Altitude Effects | Regional Profiles | Seasonal Variations | Microclimate
Equipment Knowledge¶
Espresso machines: Heat Exchange Systems | Dual Boiler Systems | Single Boiler | PID Controllers | E61 Group Heads | Saturated Groups
Grinders: Flat Burr Design | Conical Burr Design | Burr Size | RPM and Heat | Grind Distribution | Retention
Technology: Smart Grinders | Pressure Profiling | Volumetric Dosing | Gravimetric Systems | Shot Timers
Related MOCs¶
- Barista Skills /Barista Skills Development MOC — skill development framework and progression
- Coffee Origins MOC — origin profiles, terroir, and regional characteristics
- Brewing Methods MOC — brewing techniques and variables
- Sensory Science MOC — sensory evaluation, tasting, and flavour science
Part of Coffeepedia — The Coffee Knowledge Vault
This article is part of All-About-Coffee.com - The comprehensive coffee knowledgebase.
Copyright © Matthew Clairmont 2026