Natural Terra Cooler is an electricity-free refrigerator that uses the physical properties of red clay to keep food fresh. The project adapts traditional clay preservation techniques for modern use through a design featuring three overlapping containers. The outer piece functions as a vase for aromatic plants, while the middle container holds a porous material like sand or earth. When this middle layer is kept moist, it triggers an evaporative cooling process that lowers the temperature of the innermost compartment relative to the surrounding environment. This mechanism allows food stored inside to remain cool for extended periods without mechanical power. By integrating space to plant, harvest, and store food within a single object, the design functions as a simple system for food management.

Sara Baptista da Silva is an Industrial Designer and Head of Design at ARFAI. With a Master’s from ESAD.CR and training at UNIBZ, her work focuses on material innovation and sustainability. She has collaborated with brands like Vista Alegre and Sanindusa, with projects featured in the Future Materials Bank.