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IPFS News Link • Science

The Coolest Way to Keep Food Cold Without Refrigeration

08-20-2022 • arclein

Done. You're ready to store food inside. Just remember to add water to the sand every day, because zeer pots use evaporation to cool food. As water evaporates through the clay, it releases energy into the air and cools the space inside the pot. It's like splashing water on your face on a hot day; the water evaporates off your skin, cooling it in the process. Refrigerator coolant actually works in a similar way, using evaporation to draw heat out of the fridge itself. That's why the back of your Frigidaire is so warm.

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Reported By robert klein

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