The invention relates to a temperature control device (1) having a conveyor chain (4) that comprises holding apparatus for containers (5), which conveyor chain is guided on sprockets (2, 3, 18, 19), wherein the number of containers (5) that can be arranged in the temperature control zone at a particular time is varied by changing the number of holding apparatuses located after a container input (7) and before a container output (8) in a conveyance direction (9) of the conveyor chain (4) by means of changing elements (10).
