A process for the treatment or processing of containers, which serve for storing substances for medical, pharmaceutical or cosmetic applications or contain such substances, wherein the containers are open at one end and are conveyed automatically, by a conveyor, to processing stations or pass them for the treatment or processing, in which process
- a plurality of containers are conveyed by the conveyor while the containers supported by a supporting structure in a regular two-dimensional array, wherein the supporting structure comprises a plurality of openings or receptacles, which define the regular array, and wherein the bottoms of the containers are freely accessible at their closed ends from a first side of said supporting structure,
- wherein one processing station is a freeze-dryer having at least one cooling plane, in which a freeze-drying process is carried out, wherein the bottoms are in direct contact with the respective cooling plane during the freeze-drying process in said freeze-dryer while the containers are supported by the supporting structure or are accommodated in the openings or receptacles of the supporting structure.