METHOD FOR ROASTING COFFEE BEANS Russian patent published in 2022 - IPC A23F5/04 A23F5/16 

FIELD: coffee production.

SUBSTANCE: method for roasting coffee beans includes: a) heating coffee beans until their temperature is at least 180°C; b) injecting an oxygen-containing gas flow to a hot air flow after a burner, wherein the oxygen-containing gas flow injected to the hot air flow after a burner has a temperature of less than 180°C; and c) maintaining the injection of the gas flow until the completion of the roasting process to reduce the concentration of carbon monoxide of less than 8000 ppm inside a roasting chamber, while the amount of coffee beans loaded to the roasting chamber is at least 25 kg, and coffee beans are roasted in a rotary roasting machine with a fluidized layer.

EFFECT: method allows for the reduction in the level of hot burning gases, in particular carbon monoxide, inside the roasting chamber and, thereby, allows for roasting coffee beans to an extra-dark roasting color, while providing safe roasting conditions during the entire roasting process.

8 cl, 2 dwg, 2 ex