Package testing, a meticulous process, involves the precise measurement of various characteristics or properties associated with packaging. This includes packaging materials, packaging components, primary packages, shipping containers, and unit loads, as well as the associated processes.

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Testing measures the effects and interactions of the levels of packaging, the package contents, external forces, and end-use.

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Package testing is a versatile process that can involve controlled laboratory experiments, subjective evaluations by people, or field testing. Documentation is a crucial part of this process, including a formal test method, test report, photographs, video, etc.

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Package testing is a comprehensive procedure that can be qualitative or quantitative. It often involves physical tests, and chemical tests are conducted for certain types of packaging, such as food and pharmaceuticals, to determine the suitability of food-contact materials. Testing programs range from simple tests with little replication to more thorough experimental designs.

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Package testing can extend for the entire life cycle. An individual can test packages for their ability to be recycled and their ability to degrade as surface litter, in a sealed landfill, or under composting conditions.