Lightweighting of Plastic Packaging in the Agri-Food Sector: What Technical Options Are Available for Packaging Sites in France and Europe?

At agri-food packaging sites, lightweighting can apply to multiple formats: lidded trays for meats, fish and ready meals, pots for dairy products, stretch or shrink films, as well as sachets for dry or frozen products. The goal is not to reduce thickness without oversight, but to adjust the plastic structure to the real constraints of filling, transport, storage and consumer use.

Selected materials may include polyolefins, PET, PE or multilayer structures tailored to barrier requirements. For fresh or frozen products, material formulation and thickness must preserve sealing integrity, cold resistance and protection against moisture or oxygen transfer. Special attention is paid to compatibility with automated lines, particularly in terms of forming, sealing, labeling and cartoning.

On the implementation side, manufacturers generally need to schedule trials on pilot lines or production lines before full rollout. These tests verify output rate stability, seal quality, performance during palletization and the absence of deformation during distribution. Product lines intended for food contact must also be supported by complete regulatory documentation, including in the event of a material or supplier change.

From an economic perspective, lightweighted packaging can reduce the amount of material used, but may require machine adjustments, custom molds or additional development costs. Timelines vary based on the complexity of the product line, required certifications and the capacity of packaging converters to produce the new thickness specifications. It is therefore recommended to involve packaging, quality, procurement and logistics teams at a very early stage to secure the transition without disrupting the supply chain.