# Recycling ## Overview While useful **recycling** is generally outweighed by instead by the other two facets of the expression: "Reduce, Reuse, Recycle." ## Materials ### Glass >*As a general rule, every 10% increase in cullet[^1] usage results in an energy savings of 2–3% in the melting process, with a theoretical maximum potential of 30% energy saving.* ### Plastic TODO ### Metal TODO [^1]: Scrap glass material. See [[Words & Definitions]] #material_science