Andy M. said:
I have an upright freezer. I freeze chicken stock in 6-10 cup plastic containers for a year at a time. I keep the freezer at -10F and never had a problem. Mine is NOT a frost-free so freezer burn is much less of a problem. Besides, chicken stock is just frozen flavored water, nothing is going to be harmed.
I also freeze tomato sauces, some plain and some with sausages and meatballs in it. It is also no problem to freeze them for extended periods.
I absolutely do not see extended freezing in a stand alone freezer as a food safety issue. For the items mentioned, deteriorating quality has not been a problem.
You can extend freezer life of all foods by wrapping them properly. Air in the packaging is the main culprit to damage. I wrap meats in two layers of plastic wrap or one layer and a Ziplock freezer bag.
Certainly, a Food Saver system would be the best way to go for long-term freezing. It offers the best protection. Other than that, tight, airless wrapping is your best protection.