To easily adjust extraction concentration and extraction speed by providing a means for adjusting the extraction concentration and extraction speed of a sample to be A beverage supply device 1 for supplying a beverage generated by a beverage generation part 10 B provided inside a device body 2 by a beverage supply part 10 E provided on the device body 2 in a state of being charged into a cup C, the beverage generation part 10 B includes: An extraction part 31 which is inserted into a bottomed cylindrical part 31 having an extraction port 31 a formed on an extraction bottom 311 and a hot water supply port 31 b formed on a side, And a bottomed cylindrical filtration part 32 having a filtration bottom part 321 having a mesh structure and an introduction port 323 communicating with the hot water supply port 31 b formed on a side...

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