The bottle embryo is made of Polyethylene Terephthalate (normally named PET), which is dried and is heated to a certain temperature and then is injected into a mould under a high temperature and high pressure in an injection moulding machine, and the material is then cooled in the mould cavity to cool the bottle embryo into a solid form. The bottle embryo is a pre-body of the drink bottles in the market used by consumers.
Besides a high plasticity, the stability of the material is also excellent.