| 摘要 |
A coffee bean roaster having an annular coffee bean receptacle, an air passageway extending from a source of outside air to the annular coffee bean receptacle, and a fan positioned in the air passageway operative to draw air from the outside source through the air passageway and into the annular coffee bean receptacle. An air heater is positioned in the air passageway so as to heat air propelled through the air passageway by the fan prior to entering the annular coffee bean receptacle. A chaff receptacle is positioned adjacent the annular coffee bean receptacle so as to receive chaff from beans roasted in the annular coffee bean receptacle and an air exhaust passageway extends from the annular coffee bean receptacle to a region proximate to the chaff receiving receptacle and is operative to establish an exhaust air flow that carries the chaff to the chaff receptacle.
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