Container comprising a turn-lock fastener

aThe invention to a container, especially a beverage container. The lid wall is provided with a specified rupture line which, when torn open, frees an opening provided for drinking and pouring. A lid turn-lock fastener comprises a wall, which spans the lid wall, and comprises means for tearing open the opening provided for drinking and pouring. The lid turn-lock fastener is supported on the can when it is turned in order to tear open the opening provided for drinking and pouring. The opening provided for drinking and pouring extends between the rotational axis and the circular periphery of the lid wall and, in a radial direction, measures at least half of the radius length. The wall of the lid turn-lock fastener comprises an opening which is left free, which, to a large extent, has the shape and size of the opening provided for pouring, and which, by turning the lid turn-lock fastener, can be placed into a position in which it is located directly above said opening. The means used for tearing open comprise a projection placed on the lid turn-lock fastener and comprise an inclined surface provided on the lid wall.