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❄️Frozen Foods

How Cold Should Your Freezer Be?

HowLongFresh ExpertJul 24, 2025

Key Points

  • You should keep your freezer temperature at or below 0° F, says the U
  • At that freezer temperature, the growth of harmful bacteria will be halted — indeed, foods that are kept constantly frozen at 0°F or lower will keep safe indefinitely, notes the FDA
  • ) The best way to find out whether your freezer is cold enough is to use a freezer thermometer

Overview

You should keep your freezer temperature at or below 0° F, says the U.S. Food and Drug Administration. At that freezer temperature, the growth of harmful bacteria will be halted — indeed, foods that are kept constantly frozen at 0°F or lower will keep safe indefinitely, notes the FDA. (When frozen food begins to thaw, however, bacterial growth will resume.) The best way to find out whether your freezer is cold enough is to use a freezer thermometer. You can find inexpensive models at most grocery and hardware stores. Bear in mind, too, that although foods may remain safe while they’re frozen, they will eventually start to go downhill when it comes to texture, flavor and taste. To ensure that you enjoy the best quality, consult the Keep It or Toss It database for optimal freezer storage times. Long-Lasting Produce Stock up and enjoy Your Questions Answered Steak that's changed color

Key Points

  • You should keep your freezer temperature at or below 0° F, says the U
  • At that freezer temperature, the growth of harmful bacteria will be halted — indeed, foods that are kept constantly frozen at 0°F or lower will keep safe indefinitely, notes the FDA
  • ) The best way to find out whether your freezer is cold enough is to use a freezer thermometer

This information applies to: beef, chicken, cranberry, eggs, ground beef, hamburger, pie, potatoes, salad, shrimp, steak, stuffing, turkey

Tags

cooking expiration freezing leftovers refrigeration safety storage thawing

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