Recyling /oss/taxonomy/term/6472/all en Can the plastic caps on water or soda bottles be recycled? /oss/article/you-asked/can-plastic-caps-water-or-soda-bottles-be-recycled <p>Sometimes yes, sometimes no. It depends on what equipment local recyclers have available. The bottle caps and the bottle are made of different materials which presents a problem when it comes to recycling. The cap is a hard plastic, either high density polyethylene (HDPE), or polypropylene, while the bottle is made of polyethylene terephthalate (PET). These plastics have very different melting points, 260<sup>o</sup>C for PET and 140-150<sup>o</sup>C for HDPE and polypropylene.</p> Fri, 14 Oct 2022 16:25:12 +0000 Joe Schwarcz Phd 9266 at /oss