They are nothing like they used to be. The old ones could physically damage your mouth, a layer of skin would peel off from acid burns if you went at them for a while. Probably inappropriately acidic. In the intervening years, litigation has become more routine, I don't think they want to get sued for Little Jimmy's pain and suffering - let alone a choking case.

I got a few of these that were actually sweet through and through, no sour at all, was so disappointed. Anything with the Warheads brand is like this now.