Cocoa course

Lesson 1 • Cocoa's Geographic Origins

Traces cacao's domestication in Mesoamerica and its spread across tropical regions. Connects geographic origin to flavour diversity and modern production zones.

Lesson 2 • Global Cocoa Supply Chain Overview

Maps the journey from farm to finished product, identifying key actors and trade flows. Prepares students to understand quality decisions made at each supply chain stage.

Lesson 3 • Cultural and Historical Significance

Examines cocoa's role in ancient rituals, trade economies, and modern food culture. Provides cultural literacy essential for marketing and product storytelling.

Lesson 1 • Sustainable and Regenerative Farming Practices

Explores certification frameworks, biodiversity conservation, and soil regeneration approaches. Connects sustainable farming to market access and long-term farm viability.

Lesson 2 • Agroecological Requirements for Cacao

Defines the soil, rainfall, temperature, and shade conditions cacao requires. Links growing environment directly to pod development and bean quality.

Lesson 3 • Planting and Farm Management

Covers propagation methods, planting density, and ongoing agronomic practices. Establishes how farm decisions shape long-term yield and bean characteristics.

Lesson 4 • Pod Maturity and Harvesting Techniques

Teaches visual and tactile indicators of pod ripeness and proper harvesting methods. Correct harvest timing is the first critical quality control point.

Lesson 1 • Pod Breaking and Pulp Separation

Covers the mechanics of opening pods and separating beans from pulp correctly. Proper technique at this stage prevents contamination and supports even fermentation.

Lesson 2 • Fermentation Science and Practice

Explains the microbial succession, biochemical reactions, and physical conditions driving fermentation. Students learn to control fermentation variables to achieve target flavour profiles.

Lesson 3 • Bean Quality Assessment After Processing

Introduces cut tests, sensory evaluation, and defect grading to assess fermented and dried beans. Provides the quality language used throughout the supply chain.

Lesson 1 • Polyphenols, Bitterness, and Astringency

Analyses flavanols, procyanidins, and their sensory effects on bitterness and astringency. Explains how processing reduces polyphenol content and modulates mouthfeel.

Lesson 2 • Flavour Precursors and Their Origins

Identifies sugars, amino acids, and polyphenols that serve as precursors to roasted flavour compounds. Links fermentation quality to the abundance of these precursors.

Lesson 3 • Macronutrient and Micronutrient Profile

Examines fat, protein, carbohydrate, and mineral composition of cocoa beans. Establishes the nutritional baseline that influences processing behaviour and product formulation.

Lesson 4 • Cocoa Butter Crystallisation Chemistry

Explains polymorphic fat crystal forms and their role in chocolate texture and snap. Provides the chemical foundation for understanding tempering in later chapters.

Lesson 1 • Cracking and Winnowing Mechanics

Explains the mechanical cracking of roasted beans and air-separation of shell from nibs. Efficient winnowing maximises nib yield while meeting shell content specifications.

Lesson 2 • Roast Profile Design and Control

Teaches time-temperature curve design, rate-of-rise monitoring, and development time ratios. Profile design is the primary lever for flavour differentiation between origins.

Lesson 3 • Roast Level Identification and Evaluation

Covers colour measurement, aroma cues, and sensory tasting to classify roast levels. Consistent roast level identification ensures batch-to-batch product consistency.

Lesson 1 • Tempering and Crystallisation Control

Covers manual and machine tempering methods to achieve stable Form V cocoa butter crystals. Correct tempering produces gloss, snap, and resistance to bloom.

Lesson 2 • Cocoa Butter and Powder Production

Explains hydraulic pressing to separate cocoa butter from cocoa cake, followed by pulverising into powder. These two products are essential ingredients in formulation and confectionery.

Lesson 3 • Refining for Texture Development

Teaches five-roll refiner operation and ball mill refining to achieve target particle size below 25 microns. Proper refining eliminates grittiness and enables smooth mouthfeel.

Lesson 4 • Grinding and Liquor Production

Covers the conversion of nibs into cocoa liquor through milling and grinding equipment. Particle size reduction at this stage sets the foundation for texture in all downstream products.

Lesson 5 • Chocolate Formulation and Mixing

Covers ingredient ratios, emulsifier function, and mixing sequences for dark, milk, and white chocolate. Formulation decisions directly determine flavour, texture, and regulatory compliance.

Lesson 1 • Sensory Evaluation Methods

Covers discrimination tests, descriptive analysis, and hedonic scaling for cocoa and chocolate. Method selection depends on the evaluation objective and available panel resources.

Lesson 2 • Sensory Science Foundations

Introduces the physiology of taste, smell, and mouthfeel perception relevant to cocoa evaluation. Understanding sensory mechanisms enables more accurate and consistent panel performance.

Lesson 3 • Cocoa and Chocolate Flavour Lexicon

Builds a standardised vocabulary for describing cocoa and chocolate flavours using reference standards. A shared lexicon enables precise communication across production, sourcing, and marketing teams.

Lesson 4 • Physical and Chemical Quality Testing

Introduces viscosity, particle size, moisture, fat content, and microbiological testing for chocolate. Objective measurements complement sensory data to define complete product quality.

Lesson 1 • Inclusions, Flavours, and Texture Innovation

Explores the integration of nuts, fruits, spices, and alternative sweeteners into chocolate formulations. Inclusion and flavour selection expands the product portfolio and addresses dietary trends.

Lesson 2 • Consumer Insight and Concept Generation

Covers market research methods, trend analysis, and structured ideation techniques for chocolate products. Consumer insight drives concepts that are both desirable and commercially viable.

Lesson 3 • Shelf Life and Stability Testing

Covers accelerated ageing, bloom testing, and sensory shelf-life studies for chocolate products. Stability data supports packaging decisions, labelling, and retailer requirements.

Lesson 4 • Formulation Development and Iteration

Guides systematic recipe development, ingredient substitution, and iterative sensory testing. Structured iteration reduces development time and improves first-pass success rates.