Water Makes Excellent Thermal Mass

Here's a tip a friend mentioned to us recently: fill a few used milk jugs with water and cap them (leave some air at the top), and put them in the back of your refridgerator. You might find, with some rearranging, that you can fit three or four jugs of water in there.

The thermal mass of the water will help hold the temperature steady among the daily openings and closings and will reduce the amount of work the compressor must do.

In the cold months, put the jugs outside and let them chill or even freeze solid, and then put them back into the fridge. They'll be that much more effective at holding the internal temperature down in the fridge.

You should notice the compressor motor running significantly less often. You'll probably enjoy the quiet too!