| 摘要 |
PROBLEM TO BE SOLVED: To provide a container which cool the beverage such as sake immediately before drinking the beverage, and enjoy the flavor of the container at the same time. SOLUTION: The container is formed of a natural bamboo having three joint walls, an insulator is filled in one of two spaces formed by these joint walls, and a spout to communicate the other space with the atmosphere is provided in the other joint wall forming the other space.
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