A buffer means (1) and a method for buffering containers (2), in particular in a container handling apparatus, like for example bottles in a bottle filling apparatus, is described. The buffer means (1) comprises at least a first conveyor track (31). Furthermore at least a second conveyor track (32) is provided, which is drivable along a second transport direction (TR2). The first conveyor track (31) and the second conveyor track (32) are parallel to each other and form a buffer module (30). A transfer device (36) transfers the containers (2) from an infeed conveyor track (31E) onto an outlet conveyor track (32A) of the buffer module (30). By means of a sliding device the required buffer capacity of the buffer means (1) can be set. Between the infeed conveyor track (31E) and the outlet conveyor track (32A) of a buffer module (30) at least two further drivable transfer conveyors (31, 32) are provided. Thus a closed surface of the buffer module (30) is created.