All the filaments discarded, for not having passed the quality control, divided by type of material, are subsequently shredded, dried, and re-extruded, taking "new life", and going to build the raw material used for the extrusion of VITA NOVA filaments.
This process has advantages for the environment, the manufacturer, and the end-user: it allows production that eliminates internal pre-consumer waste and provides a cheaper product for those who need materials for functional use.
In fact, VITA NOVA filaments maintain the same mechanical and chemical properties of the filaments produced from "new" material, but they tend to have dark undefined colors that differ from batch to batch.