
Dairy Package Testing and Material Selection
The document identifies light, oxygen, and water vapor as primary factors contributing to dairy spoilage. Light exposure can degrade vitamins and affect flavor, oxygen accelerates oxidation reactions, and water vapor can alter product texture and consistency.
Testing Methods
Two primary tests are used to evaluate the barrier properties of dairy packaging materials:
Material Selection
Packaging materials should balance shelf life and cost-effectiveness. High barrier materials, such as paper molded aluminum foil laminates or aluminum laminated plastic films, offer extended shelf life and reduce cold storage needs. Low barrier materials like PE monochrome films are more economical but have shorter shelf lives.
Barrier Properties of Materials
Table 1 (not included here) presents data on the barrier properties of various dairy packaging materials. Paper molded laminated materials and aluminum laminated films provide the best barrier properties, suitable for longer shelf life products. Coated/laminated films offer moderate performance at a moderate cost, while PE monochrome films are cost-effective but have the weakest barrier properties.
Conclusion
Barrier testing is crucial for selecting appropriate packaging materials, balancing shelf life with cost. While current materials meet general quality requirements, there is a need for high-barrier materials to support innovative dairy products and technologies. Labthink encourages collaboration with industry companies for quality control and offers more information on their website.
Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Dairy Package Testing and Material Selection Light, oxygen, and water vapor are identified as the primary factors contributing to dairy spoilage. Light exposure can degrade vitamins and negatively impact flavor, while oxygen accelerates oxidation reactions leading to product quality decline. Water vapor transmission can affect product texture and consistency. Two primary test items are employed to evaluate the barrier properties of dairy packaging materials: Oxygen barrier Test: This test, potentially utilizing instruments like the Labthink C206H Oxygen Transmission Rate Test System, measures the rate of oxygen permeation through the packaging material. Lower oxygen permeability values indicate superior barrier properties.
Open the catalog to page 1Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Water Vapor barrier Test: This test assesses the rate of water vapor transmission through the packaging. Lower water vapor permeability signifies a stronger barrier against moisture. C306H Water Vapor Transmission Rate Test System is developed for measuring the water vapor transmission rate of barrier materials The selection of packaging materials for dairy products should prioritize achieving the desired shelf life while optimizing cost-effectiveness. High barrier materials, such as paper molded aluminum foil laminates or aluminum...
Open the catalog to page 2Labthink Instruments Co., Ltd. [email protected] +86-531-85068566 Table 1: Barrier Property Test Data of Dairy Packaging Materials No. Water Vapor Permeability (g/m²·24h) Pasteurized milk Al laminated plastic flexible packing film 1# Milk powder package AL laminated plastic flexible packing film 2# Milk powder package Coated PE packing film 1# Dairy packing Coated PE packing film 2# Dairy packing Coated PE packing film 3# Dairy packing Pasteurized milk Pasteurized milk Paper molded laminated material 1# Pasteurized milk Paper molded laminated material 2# Pasteurized milk Barrier testing plays...
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