it's because those frozen oven chips are usually made from the left over pieces of potato that couldn't be used for other stuff. and then they cover them in shit so when they get cooked in the oven they brown and go crispy (without this they just end up pale and soft when cooked). take a look at the ingredient list on some frozen chips next time. you'd think it would be potatoes and nothing else. but they always have a ton of extra shit added. picture related, it's fucking frozen potatoes why does it need 20 different ingredients?
Pirate