The fact sheet from IFEU focuses on the environmental benefits of using reusable glass jars for food packaging. It compares the life cycle impacts of reusable glass containers with single-use packaging, particularly in terms of resource consumption, energy use, and carbon emissions. The document highlights that reusable glass jars have a lower environmental impact after several reuse cycles, reducing waste and conserving resources. It advocates for expanding the use of reusable glass containers to minimise environmental harm in the food industry.