Refrigerate Without Electricity
Take a smaller container and place it inside of a larger container. Fill the space in between them with wet sand, and cover the top with a wet cloth. Once the water evaporates, it pulls the heat out with it, making the inside cold. It’s an all natural, inexpensive, very easy to use and even transportable refrigerator. So, instead of perishable foods rotting after only three days, they can last up to three weeks using this technique.