Each bar is wrapped in cellophane, which are then wrapped in the normal outer packaging. To make the 4 pack, they simply took 2x two packs and put them on a cardboard tray,and then wrapped those.
I don’t think I’ve ever gone through so much unwrapping for candy.
They break the styrofoam down right there and make new material. I am not sure if they do everything on premise, but you can see it happening right there with some of it.