When heating up frozen dinners like Mac and Cheese, do they have to reach 165 degrees all over to be safe or just in part of it?
Today when heating up a frozen mac and cheese meal I had an issue where initially I could only get it to 165 degrees in one part of the dish(one of the corners)while in other parts it didn't quite get there, so I ended up having to reheat it several times before it got 165 and above all over. My question is, is it safe to meat frozen dinners like pasta if it's only 165 degrees in part of the dish? Or does it have to be 165 degrees all over before it's safe to eat?