| 摘要 |
PROBLEM TO BE SOLVED: To provide extracting device for an beverage, which can always make the quantity of hot water supplied to a raw material appropriate. SOLUTION: When an opening-adjustable extraction valve 2b is provided to a hot-water pipeline 2 and steaming hot water is supplied to a raw material cartridge A, an appropriate quantity of steaming hot water which is smaller than that of the hot water supplied when a raw material is extracted by supplying remaining hot water is supplied little by little to a raw material cartridge A by opening the valve 2b to an opening degree which is smaller than the full opening of the valve 2b byα.
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