Provided is a novel roasting method that is effective for improving the flavor of roasted coffee beans. The present invention provides a method for producing roasted coffee beans, including a step of roasting coffee beans, wherein a ratio of lightness (lightness ratio) of the coffee beans is 0.65 or more, and a temperature increasing rate of a roasting temperature is retained at -0.15° C./second to 0.15° C./second.

The present invention has as its object to provide a method for producing green coffee beans that can be used to make coffee beverages with a fruity aroma.

Dining the process of producing green coffee beans, the following steps are performed: heating green coffee beans, and contacting the heated green coffee beans with an alcohol.

The present invention has as its object to provide a method for producing green coffee beans that can be used to make coffee beverages with a fruity aroma.

Dining the process of producing green coffee beans, the following steps are performed: heating green coffee beans, and contacting the heated green coffee beans with an alcohol.

The present invention relates to an apparatus for roasting green beans. The apparatus for roasting green beans according to an embodiment of the present invention comprises: a roasting kettle in which a roasting portion responsible for roasting green beans is formed; a heating member for heating the roasting kettle during roasting, the heating member being embedded in a heating hole formed in the roasting kettle and integrated with the roasting kettle; and a stirring device which is rotatably mounted inside the roasting kettle and stirs green beans during roasting. By providing heating to the roasting kettle during green bean roasting, the heating member embedded in the heating hole formed in the roasting kettle therefore enables more efficient roasting, resulting in a great decrease in the roasting time of green beans.

The present invention relates to an apparatus for roasting green beans. The apparatus for roasting green beans according to an embodiment of the present invention comprises: a roasting kettle in which a roasting portion responsible for roasting green beans is formed; a heating member for heating the roasting kettle during roasting, the heating member being embedded in a heating hole formed in the roasting kettle and integrated with the roasting kettle; and a stirring device which is rotatably mounted inside the roasting kettle and stirs green beans during roasting. By providing heating to the roasting kettle during green bean roasting, the heating member embedded in the heating hole formed in the roasting kettle therefore enables more efficient roasting, resulting in a great decrease in the roasting time of green beans.

The invention concerns an apparatus (10) for roasting coffee beans comprising : - a roasting chamber (1), - an air driver (8) configured to drive air inside the roasting chamber through the bottom opening of said chamber, - a heater (9) configured to heat air driven inside the roasting chamber, - a chaff collector (3) connected to the roasting chamber through a first channel (31), - at least one beans collector (4) for fully roasted beans connected to the roasting chamber through at least one second channel (41), wherein said apparatus comprises a distributing device (5) configured to open either the first channel to the chaff collector (3) only or to the at least one second channel to the at least one beans collector only.

The present specification relates to a method of preparing coffee containing β-glucan, which includes preparing a mycelium complex by culturing a β-glucan-containing mushroom raw material with a physiologically active material-containing plant raw material; culturing the mycelium complex on green coffee beans; and roasting the green coffee beans on which the mycelium complex has been cultured, and coffee containing β-glucan.

The present specification relates to a method of preparing coffee containing β-glucan, which includes preparing a mycelium complex by culturing a β-glucan-containing mushroom raw material with a physiologically active material-containing plant raw material; culturing the mycelium complex on green coffee beans; and roasting the green coffee beans on which the mycelium complex has been cultured, and coffee containing β-glucan.

This disclosure describes a method for coating coffee beans, the method comprising providing a water-ethanol solution comprising at least 20% ethanol by volume, mixing at least one ingredient with the solution, extracting one or more of micronutrients and organic compounds from the at least one ingredient into the solution to create an extract, roasting coffee beans at a temperature that is in a range from about 120 to about 375 degrees Celsius to form roasted coffee beans, cooling the roasted coffee beans to between 32 and 120 degrees Celsius, and applying the extract on an exterior surface of the roasted coffee beans while they are in this temperature range to form coated coffee beans, wherein a weight ratio of the extract to the coffee beans ranges from about 0.1% to about 40%, and wherein the applying comprises simultaneously spraying the extract on and stirring the roasted coffee beans.

A method for roasting coffee beans comprising the steps of a) heating the coffee beans until the temperature of the coffee beans is at least 180° C.; b) injecting a stream of oxygen-containing gas into the flow of hot air after the burner; and c) maintaining the injection of the stream of oxygen-containing gas until the end of the roasting process to mitigate the concentration of carbon monoxide in the roasting chamber, and wherein the coffee beans are roasted in a rotating fluidized bed roaster.