The freezer is the mother of all inventions when it comes to storing food for long periods, so you may assume that any frozen food will last indefinitely. However, just because frozen food might last forever without outwardly decaying doesn't mean it should be eaten past a certain amount of time; this includes frozen fruit.

Contrary to popular belief, bacteria can survive and grow in freezing temperatures, just at slower rates. To avoid freezer burn, you should vacuum-seal produce to ensure all exposure to air is eliminated, but you should also label bags of frozen fruit with the date you stored them, so you have a better understanding of when they'll expire.