The batch retorts and pressure sterilizers are used for sterilization processes as well as for pasteurization processes, as long as the internal pressure built up inside the pack exceeds the atmospheric pressure, as a result of thermal expansion of the foods or internal gas. The pressure built in the retort/sterilizer due to the supply of steam and/or compressed air overpressure will compensate the internal pressure built in the pack so as to prevent seal damage or package deformation.

Surdry has installed solutions for all the following list of products and is offering constant innovation for many upcoming developments.


Carton package

Plastic tray

Crystal jar

Plastic bowl