Abstract: A coffee bean roaster having a recirculated, filtered exhaust airflow; the coffee bean roaster including a filter system with a plurality of screens wherein a fluid source is sized and configured to distribute fluid across the screens so as to maintain wetness on their surfaces. The screens are positioned between a filter airflow inlet and a filter airflow outlet for passage of airflow through the screens from a filter airflow inlet to the filter airflow a. The screens have an upper end and a lower end, the fluid source sized and configured to dispense fluid from the upper ends, as a drip system, for distributing fluid throughout the screens toward the lower ends. A distribution hose is provided in fluid communication with the fluid source for distributing fluid to the screens.

Abstract: In accordance with the present invention, there is provided a coffee bean roaster with recirculated, filtered exhaust airflow. The coffee bean roaster includes a roasting drum sized and configured to receive coffee beans for roasting therein. The roasting drum has a drum airflow inlet and a drum airflow outlet for exhausting airflow from the roasting drum. The coffee bean roaster further includes a blower configured to blow airflow through the drum airflow inlet for venting the roasting drum. The coffee bean roaster includes a fluid filter having a filter airflow inlet and a filter airflow outlet. The filter airflow inlet is in fluid communication with the drum airflow outlet. The fluid filter is configured to filter airflow from the roasting drum. The filter airflow outlet is in fluid communication with the blower for recirculating airflow into the roasting drum.