Provided is an extraction bag for a tasty beverage which, when an opening (1a) of a bag main body (1) is opened, has a bottom part (1b) of the bag main body (1) that takes the elongated form of a funnel and the opened opening edges that do not bend and are substantially parallel. The extraction bag for a tasty beverage is formed from: a bag main body (1) for accommodating coffee powder or the like and extracting coffee or the like and a locking means (2) of rigid paper smaller than the bag main body (1) and attached to the front and back surfaces of the bag main body (1). The bag main body (1) is constituted by superposing substantially pentagonal pieces. The lower left and right sides ([delta],[epsilon]) of the substantially pentagonal pieces are sealed. The lower ends of the substantially pentagonal pieces correspond to the bottom part (1b) of the bag main body (1). The upper side ([alpha]) and the upper left and right sides ([beta], [gamma]) of the substantially pentagonal pieces correspond to the opening (1a) of the bag main body (1).提供一種嗜好性飲料萃取袋,其於將袋本體1之袋口1a加以開啟時,使袋本體1之底部1b成為猶如漏斗之細長形狀,並且使開啟之開口端緣不產生彎曲且成為大致水平。此嗜好性飲料萃取袋係具備有:用於收納咖啡粉等之被萃取物且針對咖啡等進行萃取之袋本體1;及相較於袋本體1為體形小,且被黏貼在袋本體1之表背面之具有剛性之紙製卡止構件2。袋本體1係將如圖3所示之大致五角形片加以重疊而成。大致五角形片之下左右邊δ及ε係被加以密封。大致五角形片之下端係相當於袋本體1之底部1b。大致五角形片之上邊α及上左右邊β及γ係相當於袋本體1之袋口1a。1‧‧‧袋本體1a‧‧‧袋本體之袋口1b‧‧‧袋本體之底部α‧‧‧大致五角形片之袋本體之上邊β‧‧‧大致五角形片之袋本體之上右邊γ‧‧‧大致五角形片之袋本體之上左邊δ‧‧‧大致五角形片之袋本體之下右邊ε‧‧‧大致五角形片之袋本體之下左邊
