The Chemistry of Coffee: From Bean to Cup

~60 min · 15 stations

Start reading — Station 01

Conductor

The Conductor

Welcome to the roasting line. We are tracking the molecular journey from raw green seeds to your steaming cup. Grab your gear and prepare for a deep dive into bean science.

What you will learn

Read the stations in any order. Each quiz you pass earns you Miles, which we’ll save for when you’re ready to sign in.

FOUNDATION

Establishes the core vocabulary and essential context you need before going further.

• Identify chemical components inside green coffee beans

Station 01: The Raw Green Seed▶

• Analyze how water mineral content impacts extraction efficiency

Station 02: Water Chemistry Basics▶

• Examine how altitude affects bean density and sugar content

Station 03: The Biology of Growth▶

CORE CONCEPTS

Unpacks the ideas and principles that the subject is built on.

• Explain browning reactions during the roasting process

Station 04: The Maillard Reaction▶

• Differentiate caramelization from the Maillard reaction

Station 05: Sugar Caramelization▶

• Calculate extraction rates based on particle size

Station 06: Solubility Principles▶

• Evaluate heat transfer methods in drum roasters

Station 07: Thermal Energy Transfer▶

MECHANICS

Examines how things actually work — the processes, rules, and systems in action.

• Describe carbon dioxide release patterns in fresh coffee

Station 08: Gas Evolution Dynamics▶

• Assess the impact of oxygen on flavor degradation

Station 09: Lipid Oxidation Rates▶

• Model water as a universal solvent for aromatics

Station 10: Solvent Extraction Mechanics▶

APPLICATION

Puts knowledge to use through real-world scenarios and practical problems.

• Measure pH levels in different brewing methods

Station 11: Acidity and pH Balance▶

• Explain emulsion properties in espresso brewing

Station 12: Colloid Formation▶

• Track the release of volatile organic compounds

Station 13: Aroma Volatility▶

SYNTHESIS

Connects everything together and explores broader implications and open questions.

• Calculate extraction efficiency using refractometry

Station 14: The Total Extraction Yield▶

• Correlate chemical profiles with human sensory data

Station 15: Sensory Molecular Mapping▶

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General Public / 9th GradeAI Generated · gemini-3.1-flash-lite

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