How Plastic Bottles are Made

This video shows how PET bottles are made, and I'm happy to see that it starts with at least some post-consumer plastic ingredients. I'm disheartened to  hear that no more than 10% of the bottle can be recycled content.

The note at 2:40 saying that the machine is being shown in slow motion is disappointing but not shocking. I wish we could get to see the machine at full speed, though, even if only to see that it's too fast for us to see.

The How It's Made series is brilliant and is an absolute must-see series for materials science teachers.