PURPOSE: To simply improve and round the flavor of the titled various drinks such as beer at low cost by filtering the drinks when the drinks are poured into directly drinking cup.

CONSTITUTION: The drinks such as beer is filtered little by little by a filtering appliance just before it is poured into the cup, such as jug which is used for drinking. Concretely, e.g., the filtering appliance is fitted under a metal stopper of a bottle of the above-mentioned drinks from the first, or the filtering appliance is fitted on the neck of the bottle after pulling out the stopper. Hence, the flavor of the above drinks can be simply improved and rounded at low cost.