Pasteurisation process with safety system to prevent mixing between pasteurised and non pasteurised food products

摘要

A circulation function is activated in the event or anticipation of a pressure drop in the system to keep the pasteurised product at a relatively high pressure without it needing to flow. A method for maintaining a pressure differential in a pasteurisation plant for liquid food products, comprises generating a signal when pressure drops or is expected to drop, in order to activate a circulation function (24) that ensures the pressure is maintained by increasing the pressure of the product on the downstream side (20) of the plant without it needing to flow.