Summary understanding

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.

Bean temperature vs environmental temperature

Bean temperature vs environmental temperature

This topic explains the relationship between the bean temperature and the surrounding environment during roasting, how heat transfer affects roast development, and why monitoring both is essential.