Fridges are a recent invention; for thousands of years, people lived without them, but had many low-tech ways of making food last. Today most fridges are filled with stuff that would last just as long and probably would taste a lot better if it was never lost in the back of the fridge. They are expensive air conditioned parking lots for what Shay Salomon called “compost and condiments.” http://www.treehugger.com/kitchen-design/saving-food-fridge-it-will-taste-better-may-even-last-longer-and-reduce-your-energy-bills.html