Originally Posted by T-Bone
THEORY: If the air wasn't in there the bags would be flat and all the chips would get crushed.
And, from what I remember from researching crisps during my degree (I know
) they need a certain amout of air, no more no less, otherwise they don't remain crispy.
Did you know, at least 1/4 of the potato is wasted during the shaping/peeling process: I was astounded.