Construction of Solar Food Dehydrator to Minimize the Post-harvest Losses

India is the second largest producer of foods, fruits, and vegetables; however, sadly, our country loses 20% of its food due to improper farming, post-harvest handling, storage, and transportation. A food preservative is one of the ways which can be used to minimize food wastage. Preservation usually involves preventing the growth of bacteria, fungi (such as yeasts), and other microorganisms, maintaining or creating nutritional value, texture, and flavor. Drying is the phase of the post-harvest system during which the product is rapidly dried until it reaches the “safe-moisture” level. The aim of drying is to lower the moisture content of the grain for safe storage and further processing. The solar food dehydrator is the device that we can rely on for the preservation of food to reduce wastage.