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.
Wax paper, or just paper, or tin foil.
Like Cadbury creme eggs used to just be wrapped in foil, now they’re plastic. <- Apparently this is only in Canada since 2015. TIL.
They’re still in foil in the UK.
And US
TIL it’s only Canada that switched
https://en.wikipedia.org/wiki/Cadbury_Creme_Egg
TIL Canada switched to plastic wrappers
Chocolate bars used to be folded aluminium foil and paper. Some still use those materials but now they weld (crimp with enough pressure?) the foil which is probably better for the product but OTOH it’s slightly annoying because you have too little foil to re-wrap a bar you only took a little bit off of.
We badly need to return to this
I think they’re still wrapped in foil in Australia, though I haven’t had any in a few years. I don’t think I’ve ever seen any eggs come wrapped in plastic, although the bags the foil eggs are in are plastic