Coffee Daily NewsThe Principles of Heat Transfer in Coffee Roasting
The principles of heat transfer in coffee roasting
The Heat Conduction Principle
- Heat always transfers from hot to cold materials.- Heat is the energy stored as heat within a material.– An excessive amount of heat can cause fires in cages, silk-shell storage boxes, and exhaust chimneys.- Convection: the movement of air around a particle.- Contact with the roasting cage: the cage must rotate to prevent grain burning.- Radiation: A metal cage that is extremely hot.During the roasting process, heat conduction occurs.Execution …