Blowing Machines
It once took a long time to make plastic bottles, before blow molding machines were invented. Workers were forced to make each bottle by hand, forming the hot plastic in molds and with other tools. It was a lot of work and took an awful lot of time, which made it difficult to bottle many bottles quickly.
Blowing machines have transformed the way plastic bottles are made. They can produce hundreds of bottles in a few minutes, dramatically speeding up the process. This helps making sure that factories are able to keep up with intense demand for plastic bottles and they are always on the shelf when people go to buy them.”