Coffee Knowledge Hub

Chemistry of Roasting

The course ‘Chemistry of Roasting’ aims to present the physicochemical changes that take place during the coffee roasting process.
Online March 5, 2022 €90

Course overview

Knowing about the reaction kinetics during this process will help the Master of roasting to make decisions while creating the roasting curve. These decisions can involve the changes in the energy load, air flow, pressure and time of the different roasting phases. The course is based on the available scientific literature.

Module 1

1) Introduction to the chemistry of coffee roasting: determining physicochemical factors (internal and external to the green bean).

2) Volume and porosity - The bean as a chemical reactor:

- cellular structure;

- internal pressure;

- expansion.

3) The chemically sensitive phases of the roasting process:

- Drying, Maillard and Development phases;

- The Maillard Reaction: The release of aromatic compounds;

- Strecker degradation: fruits and flowers;

- Caramelization of sugars: Sweet and roasted;

- Other reactions of interest.

Module 2

4) Energy applied to the phases and the sensory profile modulation:

- Roasting mistakes: underdeveloped, cooked, burnt;

- Energy: concepts of thermodynamics;

- Effects of ROR on modulation.

5) Volatile compounds: classes, formation mechanism, olfactometer group and detection threshold.

Applications close March 5, 2022

Agenda

Module 1: 5 March 2022, 12pm-2pm GMT

1) Introduction to the chemistry of coffee roasting: determining physicochemical factors (internal and external to the green bean).

2) Volume and porosity - The bean as a chemical reactor:

- cellular structure;

- internal pressure;

- expansion.

3) The chemically sensitive phases of the roasting process:

- Drying, Maillard and Development phases;

- The Maillard Reaction: The release of aromatic compounds;

- Strecker degradation: fruits and flowers;

- Caramelization of sugars: Sweet and roasted;

- Other reactions of interest.

Module 2: 6 March 2022, 12pm-2pm GMT

4) Energy applied to the phases and the sensory profile modulation:

- Roasting mistakes: underdeveloped, cooked, burnt;

- Energy: concepts of thermodynamics;

- Effects of ROR on modulation.

5) Volatile compounds: classes, formation mechanism, olfactometer group and detection threshold.

When

March 5, 2022 - March 6, 2022
Starts at 12:00pm
UTC +00:00 (Greenwich)
Save to calendar
Applications closed March 5, 2022

Meet your trainer

Veronica Belchior

Verônica Belchior is a biologist, Master in Ecology and PhD in Food Sciences. She is a Q-grader and...

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