If it's like similar cases recently (e.g. BPA) they're either still there, or have been replaced with some other less-studied product that may well be worse—not

If it's like similar cases recently (e.g. BPA) they're either still there, or have been replaced with some other less-studied product that may well be worse—not trading known-bad for known-good, but known-bad for... who knows. [EDIT] Incidentally, there's nothing at all magic about microwave popcorn bags. You can just put popcorn kernels and a little oil in a paper bag, fold it closed tightly, and put it in the microwave. Stick a plate under it if you're worried about the oil getting on your microwave. Obviously don't fill it too full or it'll unfold and popcorn will get everywhere. Or use a wok with some oil (I like coconut oil—doesn't make it taste like coconut, mostly imparts a slightly buttery flavor) and cook it on the stovetop. You can use a regular pan but the wok is way better because it tends to keep the popped corn away from the heat while letting the unpopped kernels settle down where it's oily and hot.