COFFEE ROASTER HAVING MULTIPLE ROASTING STAGES

摘要

A roaster (10) for roasting coffee beans includes a roasting chamber (14) having a top and a bottom for holding coffee beans when the beans are being roasted, a cover (16) seated on the top of the roasting chamber and a base (12) on which the bottom of the roasting chamber is seated. A device (44, 45) is provided in the base for supplying airflow into the roasting chamber. A controller (48, 50, 92) controls the airflow supplying device to generate a roasting temperature inside the roasting chamber that tracts a predetermined temperature curve. The temperature curve includes a first stage in which the roasting temperature is set to a first predetermined level for a first predetermined time period, and a second stage in which the roasting temperature is set to a second predetermined level that is higher than the first predetermined level. The second stage includes a plurality of stages including a current stage in which the roasting temperature is set to a current predetermined level for a current predetermined time period and a subsequent stage in which the roasting temperature is set to a subsequent predetermined level that is higher than the current predetermined level for a subsequent predetermined time period.