Tunnel Pasteurizer

The Tunnel Pasteurizer provides continuous, in-package pasteurisation for filled and sealed bottles, cans, and pouches. Containers travel through a series of temperature-controlled water spray zones — progressively heated to the target pasteurisation temperature, held for the required time, then cooled before discharge.

The multi-zone design allows precise control of the heating, holding, and cooling profile — ensuring every container achieves the required pasteurisation unit (PU) value regardless of line speed variation. Zone temperatures and conveyor speed are controlled via PLC with full data logging for process validation and regulatory compliance.

The stainless-steel construction and open-channel water circulation system are designed for easy cleaning and maintenance. Water consumption is minimised through a cascade recirculation system that recovers heat from the cooling zones to pre-heat the incoming water.