| 摘要 |
PROBLEM TO BE SOLVED: To provide a method which, when obtaining water extraction coffee by a method belonging to impregnation methods, enables rapid and efficient extraction of soluble components from coffee powder by stirring water and the coffee powder evenly and uniformly.SOLUTION: Water extraction coffee is obtained by: accommodating coffee powder obtained by pulverizing roasted coffee beans and water in an extraction container 11; obtaining a coffee extract by stirring the coffee powder and water under action of centrifugal force through revolution of the extraction container 11 around the vertical revolution axis L1 and autorotation thereof around the autorotation axis L2 which passes through the center of the extraction container 11; and thereafter filtering the coffee extract through a filter.SELECTED DRAWING: Figure 1 |
