PET bottles, made using Sidel’s Predis technology, allows the dairy to reduce the weight of its bottles by 20 per cent and make significant savings in chemicals and water. “The key to this novel technology is that, unlike traditional processes, it works by decontaminating not the bottles but the preforms.”
Hydrogen peroxide (H2O2) vapor is sprayed on the interior surfaces of the preforms and then activated by the heat used in the blow-molding process. This decontamination makes it possible to increase product quality and shelf life and to ensure total food safety until the expiry date, said the spokesperson. The process uses only a small amount of chemicals and virtually no water, she added.
The dairy’s new line, incorporating the Predis dry decontamination system, is said to be a first for sensitive beverages with neutral pH value. The system features the Combi Predis FMa; a compact machine for blow-molding bottles, filling and capping them, specifically for sensitive products under aseptic conditions.
The plant packages part-skim, skim and whole milk in 1 and 1.5-litre bottles with a product shelf life of three to four months at room temperature.
Packaging milk is challenging because the product is destroyed easily by light, microbes and air. Dry decontaminated PET bottles have helped the dairy overcome these problems in an environmentally-friendly way.
Aporte: Deinan Romero