TWI834840B

An extraction bag 1A according to the disclosure comprises: a bag body 3 formed by water-passing filtration sheet material 2; a thin plate-shaped component 10 disposed on an outer surface of the bag body 3; and an extraction material filled in the bag body 3. The bag body 3 has a first surface 3A and a second surface 3B corresponding to each other, and an upper edge 4a formed as an edge of the surfaces. The thin plate-shaped component 10 has a first component 10A on the first surface 3A of the bag body 3 and a second component 10B on the second surface 3B of the bag body. The components 10A, 10B continues by spacing along a first horizontal broken line Lh1 of the upper edge 4a. The thin plate-shaped component 10 has: a pair of long strip areas12 crossing the first component 10A and the second component 10B, central sticking portions 11 clamping the first component 10A from the left and right sides, and erecting from the bag body to face each other; and a vertical folding line Lv1 enabling the long strip areas