Shelf life affects product safety, quality, inventory planning, distribution and customer experience. A product that deteriorates too early can lead to returns and waste, while an unsupported date claim can create safety and compliance risks. Shelf life should therefore be established using evidence relevant to the product and its intended storage conditions.
What determines shelf life?
Factors can include ingredients, acidity, water activity, moisture, processing conditions, hygiene, packaging barrier properties, seal integrity, storage temperature, light exposure and distribution conditions. Different products fail in different ways: some develop microbial risks, while others lose flavour, colour, texture or nutritional quality.
Choose the right study design
A study begins with a clear question: which product and packaging format are being assessed, what storage conditions apply, and what quality or safety criteria define the end of shelf life? The plan may include microbiological tests, physicochemical measurements, sensory assessment, packaging checks or other product-specific analyses.
Real-time and accelerated studies
Real-time studies assess products under defined, relevant storage conditions over time. Accelerated studies may expose samples to more demanding conditions to understand deterioration patterns, but they do not automatically replace real-time evidence. Any extrapolation must be scientifically justified for the product and failure mechanism.
Use representative samples and records
Samples should reflect the product, process and packaging that will actually be sold. Record batch details, production dates, storage conditions, test methods and results. If a formulation, supplier, process or pack changes, assess whether the existing evidence remains applicable.
Shelf life is not only a laboratory result
Manufacturers should also consider production hygiene, cooling or filling controls, transport conditions, warehouse practices and consumer handling. A validated product can still deteriorate if the supply chain does not maintain the intended conditions.
Avoid common mistakes
Do not copy a competitor’s date, rely only on appearance or smell, or assume that a new package automatically extends shelf life. Do not change preservatives, processing parameters or packaging without evaluating the effect on product safety and quality.
How MyFoodXpert can help
MyFoodXpert supports food businesses with shelf-life studies and related product-development services. The study plan should be tailored to the product category, packaging, target market and applicable requirements.
Conclusion
A well-designed shelf-life study provides a stronger basis for date marking, quality specifications and distribution planning. Product-specific evidence, consistent manufacturing and suitable storage practices work together to protect quality and reduce avoidable waste.
Call to action
Need to establish or review the shelf life of a product? Contact MyFoodXpert to discuss a product-specific study.
