Attention Freezer Owners: In case of power outage
DO NOT OPEN!!!
Ella Mae Bard, C.F.C.S. Extension Agent, Family and Consumer Sciences Knox County
Sooner or later there will be a problem. It might be a winter ice storm or
summer wind and rain. There are also questions about food safety when the
freezer fails or is accidently unplugged.
If at all possible, wait until power is on before opening the freezer door. Each
door opening increases the interior temperature and decreases the time foods
will hold safely without power.
In most cases, a full or nearly full chest-type freezer, in an appropriate
location, will hold well for 24 hours and longer. DO NOT OPEN door during power
outage. If less than 24 hours, do not open door when power resumes.
LET THINGS REFREEZE at least 24 hours before opening the door.
When time is longer or conditions are different, you will need to survey the
situation and make decisions. Conditions can decrease the time the freezer will hold safely. These include:
Any door opening during the power outage. This is especially true for an upright model.
High room temperatures (above 85 to 100°F).
Initial freezer temperture above 0°F.
Partially full freezer.
The ideal location for a separate freezer is a cool, dry room. Keep at least 2
inches clearance to each side and several feet above. The garage is not
recommended; it is too hot in the summer and too cold in Ohio winters.
In case of an outage or equipment failure it is helpful to know the temperature
of the thawed food. Two tips will let you be prepared.
1. Place two or three ice cubes in a plastic freezer bag and seal. Keep this in
the freezer at all times. In an upright freezer, you can have a test bag on each
shelf. If there is a power outage you will know if the interior temperature was
above 32°F if the cubes melt. If the cubes are melted, quickly determine the
temperature of the water in the bag and you will know the temperature inside the
2. Have a thermometer on hand that will permit you to determine the temperature
of the food or the test packet mentioned above.
3. Keep a thermometer in the freezer. (Place in a location that you can read
quickly, before temperature reading changes.)
1. If there is a commercial freezer/locker in the area, check on available
storage space and costs.
2. During winter months, temperatures outdoors may allow temporary storage of
perishable foods (if temperatures are below freezing all day). Take precautions
to prevent contamination and keep out of reach of animals.
Guidelines for safely refreezing thawed foods are outlined on the chart on page
Guidelines for Safely Refreezing Thawed Food
As a general rule completely thawed foods should not be refrozen. The quality
will always be poorer and spoilage may have taken place during the thawing and
standing periods. Unfortunately, there is no home method to test whether a food
is safe after thawing. Refreezing is always to some extent a calculated risk.
Most foods above 40°F for more than 2 hours are at risk for food poisoning and
should be discarded.
Exceptions would be those foods that are safe at room temperature, such as nuts,
coffee and plain breads.
WHEN IN DOUBT, THROW IT OUT.
FROZEN FOOD PARTIALLY THAWED
(Still cold, under 40°F) COMPLETELY THAWED
(warm, above 40°F less than 2 hours)
Fruits Yes Probably safe, but may have fermented.
Fruit Juice Concentrates Yes, but flavor may be poor.
Juice may separate. Yes. May have started to fermented.
Vegetables Yes, may wish to cook and use
in vegetable mixtures before refreezing. Cook. Eat or cool and refreeze.
Meats and Poultry (uncooked) Yes, if odor is normal. May
wish to cook and refreeze.
No, if there is an off odor.Cook. Eat or cool and refreeze.
Variety Meats (liver, heart, kidney)No. If odor is normal, cook
and use as soon as possible. No.
Fish and Shellfish (uncooked) No. If odor is normal, cook
and use as soon as possible. No.
Cooked Meat, Poultry, Fish Do NOT refreeze. May be
thawed in refrigerator. Use within 1-2 days. Do NOT refreeze.
Refrigerater promptly. Use within 1-2 days.
Combination Dishes (pot pies, casseroles, whole meals) No. No.
Soups Reheat thoroughly (165°F), cool. Refreeze. No.
Ice Cream and Sherbet Safe, but quality is poor. No.
Fruit Pies Yes. Bake and eat.
Bread Yes. Yes, but texture poor.
Plain cake and cookies Yes. Yes, but texture poor.
Cream filled cake or cookies No. No.
If you have additional questions, you may call the local office of the Ohio
State University Extension.
Lydia C. Medeiros, Specialist, Food and Nutrition
Sharron Coplin, Extension Associate
All educational programs conducted by Ohio State University Extension are
available to clientele on a nondiscriminatory basis without regard to race,
color, creed, religion, sexual orientation, national origin, gender, age,
disability or Vietnam-era veteran status.
Keith L. Smith, Associate Vice President for Ag. Adm. and Director, OSU
TDD No. 800-589-8292 (Ohio only) or 614-292-1868