A plastic bottle is a bottle constructed from high-density or low-density plastic. They are typically used to store liquids such as water, soft drinks, motor oil, cooking oil, medicine, shampoo or milk. They range from very small bottles to large carboys. Consumer blow molded containers often have integral handles or are shaped to facilitate grasping.
Plastic was invented in the nineteenth century and was originally used to replace common materials such as ivory, rubber, and shellac. Plastic bottles were first used commercially in 1947, but remained impractical until the 1970s, when the PET bottle was introduced. They quickly became popular with manufacturers and customers because they are lighter, cheaper and easier to transport than glass bottles and less susceptible to corrosion than metal containers. However, their greatest advantage over glass bottles is their superior resistance to breakage, in both production and transportation. Except for wine and beer, the food industry internationally has largely replaced glass bottles with plastic bottles.
