| 摘要 |
PROBLEM TO BE SOLVED: To certainly prevent a cork from drying and to make contents in a bottle breathe through the cork even in the case where a special storage such as wine cellar is not provided. SOLUTION: With a cap put on the mouth of a bottle, moisture is supplied to the cork from a moisture-keeping member 4 provided between an inner cylindrical part 2 and an outer cylindrical part 3, and thereby the cork can be prevented from drying. In order to make contents in the bottle breathe through the cork, the outside air is made to flow through the inner cylindrical part 2, the moisture-keeping member 4 and the outer cylindrical part 3. |
