Study of Feasibility of Solar Tunnel Dryer for Preparing Onion Powder

Drying is one of the most conventional methods used for and before preservation storage. It also improves post-harvest quality value addition product. This present evaluate feasibility a solar tunnel dryer preparing onion powder. The study aims to minimize storage losses provide cheap alternative open sun drying. Solar drying would create an income source in rural area, especially farmers, can be startup or small-scale industry. Onion powder was prepared sensory evaluation done. Market acceptance determined by data collected from market survey.