UK-2021-022 | Nottingham Trent University | Caja Fria | Energy Free Refrigerator with Water Filtration

Caja Fria is a domestic product produced from terracotta, it utilises the natural cooling properties through the pores in the terracotta when in contact with water. Not only keeping food inside cool but providing safe and cold drinking water without the need for the water to be boiled first. Through being a standalone product using ancient, tried and test methods, Caja Fria does not rely on any power sources, allowing the limited energy sources to be used elsewhere and the goods inside being kept at safe temperatures regardless of power outages.