This company states that they used to use plastic in their packaging, so I’d imagine with other brands, it’s common as well.
Cellophane by itself does not prevent water vapor from entering the packaging unless coated with highly flammable material, so not sure how much companies use that.
Aren’t those windows often cellophane, not plastic?
Not that I’m aware of
(Warning: greenwashing link) https://www.barilla.com/en-gb/box
This company states that they used to use plastic in their packaging, so I’d imagine with other brands, it’s common as well.
Cellophane by itself does not prevent water vapor from entering the packaging unless coated with highly flammable material, so not sure how much companies use that.