1. Basic knowledge about coffee
- Overview of coffee bean origin and processing methods
- The impact of roasting levels on the flavor of coffee through different brewing tools
- Recognize the relationship between roast level, grind size and flavor
2. Extract analysis
Gravity method
- Recommended bed depth index and influence of dispensing equipment shape on bed depth
- The relationship between the structure of the mixing device and the impact on the flavor: V60, Kalita, December
Soaking method
- In-depth knowledge of soaking tools: French press, Aeropress, Hario
- Cold brew method: soaking, dripping
- 7 factors affecting the brewing process
3. Extraction factor
Particle Size Distribution
- Impact of distribution on extraction and sensory processes. Evaluate the appropriate particle size distribution for each tool
- Factors affecting grain size distribution: Crispness, Roasting degree, Moisture content
Contact Time
- Identify ways to vary water contact time during extraction
- Analyze the impact of changing water contact time on aspects such as sensory, dissolution efficiency and dissolved solids concentration
Water Temperature
- Influence of extraction rate of different soluble compounds
- Affects sensory aspects of coffee
Brew Turbulence
Water Quality
- Recommendations and requirements for water quality such as: TDS, Alkalinity, pH,...
Filter Media
- The influence of different Filter Media affects the flow rate
Wetting - Drawdown
- The relationship between Wetting and Drawdown when determining appropriate methods for the wetting stage will affect the soaking results
4. Analysis of the extraction process
Soluble Yield
Solubles Concentration
Vacuum - Siphon; Boiling - Cezve
Bypass
- Be aware of Sensory when diluted or undiluted during extraction
5. Application
- Equipment servicing and maintenance
- Applying the Extraction Principle to solve the problem of phase profile correction
- Applying Extraction Principles optimizes equipment, tools and operations to achieve consistent quality