In many regions where electricity is scarce or unreliable, the Desert Fridge offers a simple and ingenious solution to preserve food without conventional energy. This public tutorial introduces a natural cooling method based on the principle of evaporative cooling, using only locally available materials.

By combining sand, clay, and water, it is possible to build an efficient and durable device that keeps perishable goods fresh. This ancient technique, revived today, embodies the low-tech philosophy: making the most of simple, renewable, and local resources to meet essential needs.

By sharing this knowledge, Äerdschëff aims to promote autonomy, energy sobriety, and community resilience, while celebrating human ingenuity in the face of today’s climatic and energy challenges.

Access the tutorial here: Desert fridge