“One way people could probably avoid it is to make their own out of fresh ingredients and store it properly.”
What I tell my kids is that it’s ok to eat food like that, as long as there is a chain of liability - in other words, if a place like McDonalds has mayo, I don’t get too worried, because I know they understand both the regulations and the risks involved with not following those regs. But with a church outing...I’m much more selective - even people meaning well can make mistakes.
People spit in food and worse in burger chain places. Management knows regs and suc, but the people assembling the food are the ones that do or dont follow them.
All i was saying is what you are. If you make it yourself and store it yourself, properly, you will know there will be no problems with it.