This beverage supply device comprises an extractor 30, which introduces ground coffee beans and hot water into a cylinder 341 and extracts coffee, the device supplying the coffee extracted from the extractor 30 to a cup C, wherein the extractor 30 is provided with a cylindrical passage constituting member 35, which is disposed in a mode in which the inside of the extractor communicates with an upper surface opening of the cylinder 341, thereby constituting a passage 351 through which ground coffee beans and hot water pass, and which is elastically deformed by an external force and can thereby close the passage 351.

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