Abstract: An installation for the pasteurization or sterilization of products packed in containers comprises a treatment space with a conveyor travelling through this space and having carriers for supporting the containers. The conveyor passes along a loading and a discharging station. Each carrier has a plurality of equally spaced partitions to define a number of compartments. A supply conveyor at the loading station has driving dogs spaced from each other equal to the distance between the carrier partitions. A discharge device is provided with the same number of tiltable catching elements as there are compartments in each carrier.