Installation, used to sterilize envelope of e.g. ham, comprises conveyers coming into lacunar contact with food product to move product between conveyers so that no surface of lower part of envelope is free of treatment by ozonated water
The installation comprises a treatment chamber (7), an ozone generator (3), and an upstream conveyor (5) and a downstream conveyer (6) that have a unit coming into abutment in an envelope of a bread food product (2) to longitudinally move the food product from upstream to downstream through the chamber. The conveyers move the food product within a treatment boundary, and come into a lacunar contact with the food product to differentially move the product between the conveyers so that no surface of a lower part of the envelope is free of the treatment by the ozonated water. The installation comprises a treatment chamber (7), an ozone generator (3), pipes for delivering ozonated water to the treatment chamber, and an upstream conveyor (5) and a downstream conveyer (6) that have a unit coming into abutment in an envelope of a bread food product (2) to longitudinally move the food product from upstream to downstream through the treatment chamber. The conveyers move the food product within a treatment boundary, and come into a lacunar contact with the food product to differentially move the food product between the conveyers so that no surface of a lower part of the envelope is free of the treatment by the ozonated water. The conveyers are provided with mesh belts whose meshes are multiple times greater than a diameter of a metal yarn. The conveyers are arranged so that contact zones between the food product and the meshes of the belt of the downstream conveyor are distinct from contact zones between the food product and the meshes of the belt of the upstream conveyor. The conveyors comprise chains, belts or equivalent units and have different or identical spacings. The spacing of smaller value of one of the conveyors is arranged in an extension of the spacing of highest value of the other conveyor. The spacings are transversely shifted compared to a width of a chain, belt or equivalent unit. The treatment chamber is connected to a suction unit in its upper portion, and
