Drying phase

Color changes and caramelization

Color changes and caramelization

This topic explores how coffee beans change color during roasting and the role of caramelization in flavor development.

Charge temp and turning point

Charge temp and turning point

This topic explains the significance of charge temperature and the turning point in coffee roasting, and how they affect bean development and final flavor.

Gas, airflow, drum speed controls

Gas, airflow, drum speed controls

This topic covers how key roaster controls—gas (heat), airflow, and drum speed—affect roast development, bean temperature, and flavor outcomes.

Endothermic vs exothermic transitions

Endothermic vs exothermic transitions

This topic explains the thermal events during coffee roasting, highlighting the difference between endothermic and exothermic reactions, and how these affect roast control and flavor development.

Rate of Rise (RoR) interpretation

Rate of Rise (RoR) interpretation

This topic covers how to interpret the Rate of Rise (RoR) during coffee roasting, why it’s crucial for controlling roast development, and how to make real-time adjustments based on RoR trends.