Not a lot of them in newer homes, but a lot of older homes still have a cold cellar - a place to keep packaged food, produce and preserves cool.
Now, there's a sustainable underground fridge that will do the same. No electricity necessary.
The Groundfridge is dug into the ground and covered with a metre of soil which acts as insulation. It can hold up to 500 kilograms of food - enough to fill 20 conventional refrigerators.
Its makers say it can be easily dug up and moved if you change your place of residence.
images via yankodesign.com