A solar dehydrator is an eco-friendly device that uses sunlight to dry and preserve food by removing moisture. It consists of a solar collector that traps heat, a drying chamber with trays for the food, and a ventilation system to expel moist air. This method is energy-efficient, cost-effective, and environmentally friendly, ideal for drying fruits, vegetables, herbs, and making snacks. Solar dehydrators retain more nutrients compared to high-heat drying and are a great solution for sustainable food preservation.