Abstract: 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.

Abstract: A roasted plant extraction apparatus is provided which is capable of selectively reducing excessive bitterness in an extract liquid obtained by water extraction from a roasted plant raw material while preserving desirable flavor ingredients and body. A beverage extraction apparatus includes a granule containing part adapted to contain granules for extraction of a beverage, a pouring device for pouring an extraction solvent into the granule containing part from a first direction, and a collecting device for collecting an extract liquid extracted by means of the extraction solvent. The granule containing part comprises a detachable restraining member for placing the granules in a substantially sealed state. The beverage extraction apparatus further comprises a rotary mechanism for rotating the granule containing part.

Abstract: A roasted plant extraction apparatus is provided which is capable of selectively reducing excessive bitterness in an extract liquid obtained by water extraction from a roasted plant raw material while preserving desirable flavor ingredients and body. A beverage extraction apparatus includes a granule containing part containing granules for extraction of a beverage, first pouring device for pouring an extraction solvent into the granule containing part from a first direction, and collecting device for collecting a coffee extract liquid extracted by device of the extraction solvent at the side of layers of the coffee granules corresponding to the first direction. The granule containing part is provided with a detachable restraining member for placing the granules for extraction of a beverage in a substantially sealed state.

Abstract: The invention provides a method of processing green coffee beans that improves the aromas and flavors of green coffee beans through simple means, allowing richly fragrant green coffee beans that have unique aromas to be obtained with ease. A method of processing green coffee beans includes a fermentation process by bringing green coffee beans, which are unground seeds from coffee berries, microorganisms, and nutritive substances that are metabolized by the microorganisms into contact with one another to cause fermentation, followed by a separation process of separating out only said green coffee beans that have passed through the fermentation process.

Abstract: A roasted plant extraction apparatus is provided which is capable of selectively reducing excessive bitterness in an extract liquid obtained by water extraction from a roasted plant raw material while preserving desirable flavor ingredients and body. A beverage extraction apparatus includes a granule containing part containing granules for extraction of a beverage, first pouring device for pouring an extraction solvent into the granule containing part from a first direction, and collecting device for collecting a coffee extract liquid extracted by device of the extraction solvent at the side of layers of the coffee granules corresponding to the first direction. The granule containing part is provided with a detachable restraining member for placing the granules for extraction of a beverage in a substantially sealed state.

Abstract: A roasted plant extraction apparatus is provided which is capable of selectively reducing excessive bitterness in an extract liquid obtained by water extraction from a roasted plant raw material while preserving desirable flavor ingredients and body. A beverage extraction apparatus includes a granule containing part adapted to contain granules for extraction of a beverage, a pouring device for pouring an extraction solvent into the granule containing part from a first direction, and a collecting device for collecting an extract liquid extracted by means of the extraction solvent. The granule containing part comprises a detachable restraining member for placing the granules in a substantially sealed state. The beverage extraction apparatus further comprises a rotary mechanism for rotating the granule containing part.

Abstract: A method for manufacturing a coffee extract is provided which method enables flavor ingredients of coffee to be extracted separately from bitter ingredients. A coffee extract is obtained by a method including a) a step of placing coffee granules in a granule container part substantially sealed by a restraining member, b) a step of guiding an extraction solvent from a first direction into the granule container part for extraction, and c) a step of retrieving, from the first direction, a coffee extract stored in the granule container part.

Abstract: The present invention aims to provide caffeineless coffee that is rich in flavor. Ethyl isovalerate is incorporated in caffeineless coffee. If the caffeineless coffee is in the form of coffee beans, ethyl isovalerate is incorporated in such a way that its proportion is at least 1 ppb relative to the total amount of the coffee beans.

Abstract: A method of processing coffee berries which includes a fermentation process of bringing coffee berries having a coffee seed and coffee pulp into contact with microorganisms that metabolize said coffee pulp to cause fermentation, and a refining process. Green coffee beans are obtained by performing a fermentation process of bringing coffee berries, which have a coffee seed and coffee pulp, and microorganisms into contact with one another to cause fermentation, and a refining process.

Abstract: The invention provides a method of processing green coffee beans that improves the aromas and flavors of green coffee beans through simple means, allowing richly fragrant green coffee beans that have unique aromas to be obtained with ease. A method of processing green coffee beans includes a fermentation process by bringing green coffee beans, which are unground seeds from coffee berries, microorganisms, and nutritive substances that are metabolized by the microorganisms into contact with one another to cause fermentation, followed by a separation process of separating out only said green coffee beans that have passed through the fermentation process.