A sample coffee roasting device comprising a roasting chamber arranged to hold a sample of coffee beans； a heating element； an air inlet channel configured to guide heated air from the heating element into the roasting chamber； paddles rotatable about a center, for continuous shifting of the coffee beans inside the roasting chamber, the paddles comprising blades； an air exit channel, for exhausting air and residue from the roasting chamber. The sample coffee roasting device comprises a first temperature sensor arranged to measure a temperature of the sample of coffee beans, the first temperature sensor protruding into the roasting chamber and configured for being covered by the coffee beans located in a lower part of the roasting chamber； the blades of the paddles are planar and aligned perpendicular to the direction of movement, for evenly distribution of the coffee beans inside the roasting chamber.
