EXTRACTION CONTAINER

PROBLEM TO BE SOLVED: To provide an extraction container which, even though engagement portions of an inner plug and an upper lid keep interfering (engaging) with each other in attaching because of small resistance in attaching the upper lid to a container main body, can prevent creep deformation of the engagement portions and facilitates rupture of a score (weakened line) formed in the inner plug with the upper lid.SOLUTION: The extraction container comprises an inner plug having an annular score formed on a closing plate attached to an opening portion of a container main body and an upper lid that covers the inner plug and is attached to the container main body, where the inner plug is opened by rupture of the score. The inner plug has a plurality of curved impeller-like wall pieces, which extend radially outward from the center of the closing plate, and apical ends of which are arranged and formed at equal intervals. The upper lid surrounds the curved impeller-like wall pieces of the inner plug and has a plurality of locking protrusions lockable to the curved impeller-like wall pieces. When the upper lid is removed from the container main body, the curved impeller-like wall pieces and the locking protrusions are locked to each other to open the score of the inner plug.