| 摘要 |
PROBLEM TO BE SOLVED: To prepare a cup of coffee having white whipped cream widely coering the surface of the coffee by narrowing and making thin the tip part for coffee discharge. SOLUTION: A coffee liquid extractor 1 is arranged in the automatic vending machine for coffee. A tube 2 extending from the coffee extractor 1 is connected to an air discharge tank 3, and a tube 4 extending from the tank 3 is connected to a coffee discharging nozzle 5. The coffee discharging nozzle 5a is narrowed to a small internal diameter of about 4 mm. This coffee discharging nozzle 5 is fixed to the structure member of the automatic vending machine while having its tip part 5a directed obliquely downward. Bubbles of large size of pressurized air present in coffee liquid are separated from the coffee liquid at the said nozzle tip part 5a and coffee liquid containing no air bubbles of large size is discharged from the tip part 5a of the coffee discharging nozzle 5.
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