Although frozen foods have a much longer expiration date than fresh foods, they do, in fact, have a limited shelf life. The concern is not so much food safety, but rather quality control. Frozen food isn’t always stored properly, which can lead to damage such as freezer burn or other types of contamination.
FoodSafety.gov guidelines recommend the following storage times:
1-2 months:
Bacon, sausage and hot dogs
Lunchmeats
Leftover pizza
Chicken nuggets
2-3 months:
Vegetable or meat-added soups and stews
3-4 months:
Hamburger; ground beef, turkey, lamb, veal and pork