The present invention provides a roasting device, comprising a rotatable roller； at least 3 heating element, disposed in the interior of the roller and encompassed the center of the roller； and an exhausting device connected to the roller. The present invention further comprises a plasma generator for cleaning the interior of the roller. The present invention can improve the problem of uneven heating of the coffee beans.本發明提供一種烘焙裝置，包括可轉動之一滾筒；至少三加熱元件，設置於該滾筒內部並且以該滾筒之中心為基準環繞該中心設置；以及一排氣裝置，連通至該滾筒。本發明另可包括一電漿產生器，用於清潔滾筒內部。可改善咖啡豆加熱不均勻的問題。
