Heat transfer

Data logging and curve analysis

Data logging and curve analysis

This topic explains how to systematically record roast data and interpret curves to optimize roast quality and consistency.

Managing RoR flicks and crashes

Managing RoR flicks and crashes

This topic explains how to monitor and control sudden fluctuations in Rate of Rise (RoR) during roasting, ensuring a smooth, predictable roast curve.

Designing profiles for density and size

Designing profiles for density and size

This topic covers how to create roasting profiles tailored to bean density and size, ensuring even roast and optimal flavor development.

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.

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.

Heat transfer: conduction, convection, radiation

Heat transfer: conduction, convection, radiation

This topic explains the three mechanisms of heat transfer—conduction, convection, and radiation—in coffee roasting, how they interact, and their influence on bean development and flavor outcomes.