Testing for the Ideal Freezer Temperature
If you want to test your freezer to see what temperature it is use a freezer thermometer.
Ideally read the thermometer after the freezer door has been closed for
quite awhile, like first thing in the morning, so you get an accurate
Save energy! Keep your freezer full.
A full freezer will stay colder longer, thus using less energy to
maintain the ideal freezer temperature. Once frozen, foods should be
grouped together to help keep each other cold. It takes less energy to
keep frozen foods cold than to cool the air in the freezer.
In the case of a power out a freezer full of frozen food will
keep for about two days, a half full freezer will only stay frozen for
about half a day.
Just in case your freezer does defrost you should keep it well organized.
The lowest part of your freezer should be raw meats, above that cooked
meats and meals, then fruits and veggies and dry goods like breads on
You can keep your freezer full by adding ice, flour,dry beans,
rice or other pantry items when you have extra space. Remember, those
solid masses will help keep your freezer more energy efficient and keep
your food cold longer in the event of a power out.
MYTH: A freezer that is too cold causes freezer burn.
Temperature does not cause freezer burn.
Freezer burn is the dehydration of your food by air. The moisture
leaves the food, entering the air in the freezer. Proper moisture-vapor
proof freezer quality storage containers are key to preventing freezer
Freezer alarms are another solution you may have heard about. And a
freezer alarm that monitors the temperature in the freezer
and lets you know if it gets too warm is a great investment if you have
lots of power outs or kids that don't shut the door all the time.
What about the fridge?
While we're talking about food safety and temps let's talk about the ideal refrigerator temperature, 35-40 F (1.8-4 C). This range slows the growth of bacteria without risk of freezing foods.
Regardless of what anyone says in terms of saving electricity do not turn your fridge thermostat any higher than 40 F (4 C).
The danger zone is the range in which bacteria in food can
grow. The temperature range is 49 F and 140 F (4C and 60C) and food
kept in this range for more than four hours should be thrown away to prevent food poisoning and other illnesses.