Sun drying is a natural method of preserving food by removing moisture using sunlight. This technique is commonly used for fruits, vegetables, and herbs, allowing them to be stored for longer periods without refrigeration. The process involves placing the food items in direct sunlight, where the heat and light help evaporate the water content. This method is energy-efficient and environmentally friendly, as it relies on solar energy rather than electricity. However, sun drying requires warm, dry weather and can take several days to complete. Proper hygiene and protection from pests are essential to ensure the food remains safe for consumption during the drying process.