| 摘要 |
PROBLEM TO BE SOLVED: To provide a method by which a coffee beverage can be extracted uniformly without allowing unfavorable ingredients to be contained upon extraction.SOLUTION: Roasted coffee beans 8 are crushed and placed in an extraction tank 1, and water is sprinkled to extract a coffee beverage. Water of 3,000-10,000 L volume at 20-99°C is sprinkled in the form of water drops, each having a diameter of 50-200 μm, over 200-700 kg of the coffee beans 8 which are crushed into an average particle size of 1.10-1.40 mm, and is allowed to fall freely through a layer of the coffee beans 8 placed in the extraction tank 1 in 2-16 min to obtain a coffee extraction liquid. |
