The creation of plastic water bottles is the result of a manufacturing process where multiple raw materials are manipulated to create a shape ideal for holding liquids. In a raw state, plastic is composed of multiple organic polymers including polyethylene and ethylene. In a soft state, these materials can be shaped into the desired form for the bottle and then cast into a solid-state.
Plastic water bottles can be manufactured through the use of various raw materials. These materials can be identified by checking the base of the bottle for a resin identification code which will help you determine whether the bottle has been made from polyethylene terephthalate, high-density polyethylene, low-density polyethylene, or polystyrene.