Una medida más amplia de sostenibilidad Los criterios que determinarán qué se considera un envase sostenible según la PPWR aún se están incorporando a la legislación secundaria. Si la evaluación se centra únicamente en la composición, se corre el riesgo de pasar por alto las consecuencias más amplias de un fallo en el packaging: envases dañados, pérdida de alimentos y los recursos ya utilizados para producir, procesar y transportar esos alimentos. Por lo tanto, la APA apoya una evaluación basada en la evidencia que considere conjuntamente la vida útil, la seguridad alimentaria, el rendimiento de la línea de producción, la logística, la prevención del desperdicio de alimentos y la reciclabilidad demostrada. En esta aplicación, la funcionalidad determinó si el envase llegó al punto de venta, mientras que la estructura de mayor rendimiento también utilizó menos material. El envase más sostenible no es necesariamente la estructura más simple. Es la solución que logra el equilibrio adecuado entre la protección del producto, la eficiencia del material, la viabilidad industrial y una reciclabilidad demostrada. Sustainable packaging must be evaluated as part of a wider system: not only by what a pack is made from, but also by how effectively it protects the product, prevents waste, performs under industrial conditions and supports circularity. Industrial evidence: a thinner structure with fewer failures The trial compared two structures used for pork knuckle bipacks: a 200-micron film containing polyamide (PA) and a 240-micron alternative without polyamide. Approximately 380 units were run under industrial conditions and then subjected to a transport simulation to assess package integrity throughout processing, pasteurization and distribution. During processing and pasteurization, the structure containing polyamide recorded a failure rate of 0.69%, compared with 4.17% for the alternative, approximately six times fewer incidents. In the transport simulation, conducted in accordance with ISO 4180:2020 and ASTM D4169-23, the respective failure rates were 3.42% and 8.56%. Overall, the 200-micron structure containing polyamide failed on 4.11% of packs, while the 240-micron structure recorded a 12.73% failure rate. The thinner film therefore produced approximately three times fewer failures. Performance begins on the packaging line An important finding emerged before the full comparison began. In preliminary thermoforming trials, the 240-micron polyamide-free structure did not provide sufficient sealing reliability as a lidding film. A commercial structure containing polyamide had to be used to maintain stable machine performance. This underlines why material choices must be validated under real production conditions, rather than assessed only through theoretical specifications. For converters, machinery suppliers, food processors, brand owners and retailers, packaging performance is an operational requirement. A structure that cannot be processed consistently, or that causes more failures during distribution, transfers environmental and economic impacts elsewhere in the value chain. What the results could mean at scale Applied to one million pork knuckle bipacks, the difference observed in the trial was estimated to represent approximately 50 tonnes of avoided food waste, 16 tonnes of avoided plastic waste and EUR 340,000 in avoided product losses. The lower-failure structure was also 40 microns thinner. In 40TEMA CENTRAL I MAIN TOPIC Menos material, menos fallos Less material, fewer failures Advanced Packaging Association (APA)
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