The present invention has a multi-stage loading and storage containers (10-1) (10-2) (10-3) of each stage that can be attached and detached up and down, the uppermost stage storage container portion (10-3) serving as a side dish container ) Is composed of the side dish container (5) and the side dish lid (8), but the lower part of the side dish container (5) is configured to be integrally formed with a lid portion (8a) for the double vacuum vessel body (14), the other end of the storage container ( 10-1) and 10-2 are stainless steel materials and the bottom portion of the stainless double vacuum bowl cylinder 4 and the double vacuum bowl cylinder 4 having a vacuum hollow portion between the double wall of the outer wall 4b and the inner wall 4a. At the same time having a top fitting groove to fit the fitting is configured to include a support bracket (6) formed integrally with the lid portion (8a) for the double vacuum bowl cylinder (4) at the bottom.
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