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study carried out by Dutch environment and food institute TNO, has revealed that food packaged in steel cans is highly eco-efficient and has a high sustainability performance when compared with other packaging options.
The study, which analysed the performance of packaged vegetables in terms of environmental impact, cost for the consumer and nutritional value, sought to provide information on the overall value of differently-packaged food to society. In terms of environmental performance, it found that steel cans had a lower than average environmental impact across six criteria when compared with other packaging options.
Commenting on the conclusions of the study Toon Ansems, project leader at TNO said "In today‘‘s open market where the supply of food is secured throughout the year, among the systems analysed in our study, the canned food packaging system is a top performer in terms of ecoefficiency."
When combining economic and environmental aspects, vegetables sold in a steel food can, frozen in a plastic bag or fresh peeled performed well, having comparable above-average ecoefficiency, while vegetables in a food pouch, laminate carton or frozen in a carton performed less well.
The TNO study assessed the cost and environmental efficiency of seven packaged food systems from food crop to food consumption, including storage and food preparation and taking into account various packaging forms including fresh, frozen and preserved. They were then assessed on the basis of the six environmental indicators which included global warming potential, ozone depletion potential and a range of human and eco-toxicity potentials
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