The present invention relates to a method and an arrangement for emptying a flexible container (30) of bag contents (31) therein. Such a flexible container includes a bottom opening (34) in its lower end and a top opening (37) in its upper end. When this container is to be emptied of its contents, it is placed in an emptying arrangement in such a way that the container's bottom opening lies below the top opening. The flexible container is then turned around an axis of rotation that unites said bottom opening and top opening. The turning motion produced is gradually propagated from the container's upper end towards its lower end whereby the container is twisted into a tight string (32). This twisting contributes to removing the bag contents (31) from the flexible container via the bottom opening (34) provided or made therein.