...somehow the fact that it's only made out of FDA approved ingredients doesn't make me feel save at all. it's a lot of dangerous stuff that is approved for food and drug use in certain quantities... but it's always about the quantity and nobody can even begin to test the effects of the combinations. and it clearly spells out the fact that some non-negligible amount of it ends up being ingested, otherwise they wouldn…
Now, there are a lot of things we don't know about LiquiGlide. Maybe it's just a carbon-polymer matrix that keeps the ketchup flowing by mechanical action, and not by chemical action? Whatever it is, I would imagine that anyone designing such a substance would realize that ketchup is fairly acidic; therefore, LiquiGlide would need to be chemically inert when positioned next to an acid. I am not an organic chemist, but I imagine these guys had one, or consulted with one, or at any rate, know a lot more about the subject than I do. So if this stuff's occurring to me, no doubt it occurred to them.
To be fair, that doesn't mean the substance is safe. In fact, I'd probably share your skepticism about consuming ketchup from a bottle made with any nonstick coating, as the history of nonstick coatings is riddled with unsafe chemicals. That being said, I consider these kids and their work to be innocent until proven guilty.
Finally, if you don't want artificial ingredients in your food, then don't eat Heinz ketchup in the first place. :) Complaining about chemical additives to what is basically a sauce of chemical additives is a little like saying that you want your deep fried ice cream to be low-fat. Very little of what's in a bottle of Heinz ketchup even came from a tomato in the first place.
