Small roaster for roasting green coffee beans and related products

Apparatus for roasting green coffee beans with a toasting chamber [1], a central immersion tube [7] with the outlet side arranged flow-guiding device [8] and inflow floor [6] and a downstream separation device [9] with the heat recovery device 12], one of the three above mentioned components connecting air supply conduit [3] with fan [10], and an exhaust pipe [4] from the roasting chamber [1] to the downstream heat recovery device [12], characterized in that the supply air led to the pre-heating by the heating means [13] upstream heat recovery device [12] is, and has the flow guide [8] through a plurality of tangential exit openings.