Question for the physics gurus

[fasternyou929]

Originally Posted by EpyonXero

Once the items in the freezer are at a stable temperature the freezer will use less energy than an empty freezer because air loses heat faster than most food items.

Did you notice you contradicted yourself there? If air loses heat faster than food items, air (an empty freezer) would be the most efficient scenario.

Originally Posted by EpyonXero

Putting jugs of water in an empty or almost empty freezer will cause the freezer to do more work in order to cool the water if the power were to go out the freezer would remain colder longer because it takes more energy to heat water than air. However, if your freezer is full adding water isnt necessary because the food will keep each other cool.

If a package of ground beef is chilled to 0F and placed in a freezer where the air temp is 0F, how do you suppose ground beef is going to generate heat? Remember, in thermodynamics there's no such thing as "cold", just loss or addition of heat. For food to make the freezer less effective it would need to generate heat.

Food, water, etc. can not "keep each other cool".