The faster food freezes, due to
lower freezer temps and being cooled to room temp or fridge temp before
freezing, the smaller the ice crystals.
The smaller the
ice crystals the smaller the change in texture and better quality when
Try to set the dial to the proper temperature 24 in advance.
Why not leave the freezer set to -10F (-23C) all the the time?
Because it uses a LOT more electricity to keep the freezer that cold and there is little to gain - except a bigger bill!
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 large freezer full of frozen food will
keep for about two days, a half full freezer will only stay frozen for
about half a day.
And 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.
solid masses will help keep your freezer more energy efficient and keep
your food cold longer in the event of a power out.
Of course, learning the basics of freezer cooking
such as what can and can't freeze, how to prevent freezer burn and
oxidation, and what containers to use, also helps with quality.