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Cool Idea — Rajkot

by Peter Biľak

Mansukhbhai Prajapati, a potter from the state of Gujarat, India, has developed Mitti Cool, an ingenious clay refrigerator that operates without electricity. Water dripping from a 20ℓ tank at the top of the refrigerator flows down the sides of the unit into a tank at the bottom, keeping up to 50ℓ of water, fruits, vegetables and milk cool and fresh for days by evaporation. The refrigerator costs ₹3440 (Indian rupees), or about €50. A larger, more expensive model is in development.

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