plastic dont be so silly :P
the origanal coke bottles were made of glass, but later it has become made of plastic and cans.
in 1884
The coke bottle was made in china but to this very day they use them in all of the coke factories around the world
In 1970 Pepsi invented the 2l bottle by a small team led by Nathaniel Wyeth of DuPort who receved the patent in 1973, in 1985 they produced another bottle: the 3l bottle. XD enjoy my answer
The coke bottle is made from PET - Polyethylene terephtalate.