Sam2 -“The oils are almost never actually Treif. I’ve actually looked at them at places like that (amusement parks and such) and I’ve seen OUs on the oils all the time. But you never have a guarantee that the machine is Kosher and therefore can’t use it. The workers don’t have the Ne’emanus necessary to render the popcorn Kosher.”
Ya’know I used to think like you, not just with popcorn, but also where they just make French Fries, until I passed one of these stands and saw an empty box of lard in the garbage. They switch the stuff what they fry/cook in all the time. It just depends what stuff is cheaper when they are ready to buy their next container.