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Refrigerate food without electricity

Refrigerate food without electricity

Its operation is basic and consists of placing a vessel inside a larger one, filling the space between them with wet sand and covering the upper part with a damp cloth. When the water evaporates, it extracts the heat stored inside the vessel with it, thus generating a decrease in the internal temperature. It is a natural, cheap and easy process to make.

In this way, perishable foods that only lasted 3 days (before the decomposition process began) can now last up to 3 weeks. With his invention he won the Rolex Award that distributes $ 75,000 in prize money.

Brilliant ideas are not difficult to execute, here is a clear example of this. The technology has been known for centuries, but has never been applied to this problem.

Eco things


Video: Van Life WITHOUT Fridge What Food I Buy Vlog (June 2021).