Dairy products are packaged in plants using a variety of materials and methods, tailored to the type of product, processing and storage conditions, and handling requirements. Here’s a concise overview of the process:
Materials: Common packaging materials include glass and/or plastic bottles, laminates (multilayer materials), pouches, plastic tubs, and cans1. Plastics like PET, PE, HDPE, PS, and PP are frequently used due to their flexibility, strength, and barrier properties12.
Processing Techniques: Techniques such as cold-fill, liquid-fill, fill-seal, form fill seal, UHT, pasteurization, and aseptic processing are employed to ensure product safety and extend shelf life3.
Packaging Process: The milk travels through pipes to automatic packaging machines that fill and seal the product into containers like paper cartons or plastic jugs. These containers are then dated to indicate freshness4.
The choice of packaging is crucial as it must protect the product from contamination, ensure food safety, and provide convenience for storage and distribution while minimizing environmental impact1.
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