But how to they define "real potato"? Why isn't "dehydrated processed potato" potato? And how are they processed--I mean, turned into those chip-like things that come in the can? Are they baked, or what?
What I'd like to get at is what might be the difference between Pringles and the different "baked" (as opposed to cooked in fat, I presume) potato "chips" marketed by other companies, like Herr's, for example.
Pringles are made from potato dough/batter placed in a mold to produce uniform objects. Looks like there are a few other brands of baked potato items made like Pringles. As Chuck said, they don't call themselves chips; sometimes they barely identify the potato-based objects.
Note that on this bag, there's no noun at all at the top of the bag in big letters, though it does mention below the BAKED that the contents have less fat than "regular potato chips," implying that they're otherwise the same product. But in the lower left corner in small letters, it says "potato crisps."
But there are also baked potato chips that are like regular chips -- i.e., thin slices of intact potatoes with irregular and sometimes curled or folded over shapes -- except baked.
All this must cause massive confusion in England, where ordinary potato chips are called crisps, and "chips" means french fries. And if that's not sufficiently confusing, in England cookies are called biscuits; it's not clear what they call actual biscuits -- it's possible they just don't have them.
Another way to explain the difference between Pringles and regular chips is to compare it to the difference between crab legs and "krab" legs, the latter of which are made with pureed whitefish flavored like crab, extruded into stick shapes and painted with a pink stripe. I once visited a factory that made those, and I'll just tell you that I've never eaten them since.