COMMON QUERIES ANSWERED

Frequently Asked Questions?

  • A Solar Dryer is a food processing machine that removes moisture from fruits, vegetables, herbs, spices, fish, flowers, and other agricultural commodities using natural solar energy. It provides hygienic drying inside a protected chamber, helping preserve the product's colour, taste, aroma, nutrition, and shelf life while reducing post-harvest losses.

  • Rudra Solar Dryer works on the Greenhouse Effect combined with Radiation, Conduction, and Forced Convection heat transfer. Sunlight enters the drying chamber and is converted into heat, while solar-powered DC fans circulate hot air and remove moisture efficiently. This results in faster, uniform, and hygienic drying compared to traditional open sun drying.

  • A single Rudra Solar Dryer can dry 400+ agricultural and food commodities, including fruits, vegetables, herbs, spices, mushrooms, moringa, medicinal plants, flowers, fish, seafood, meat, dry fruits, coconut, tea leaves, millets, pulses, and many more. Its multipurpose design makes it suitable for a wide range of food processing and value-addition applications.

  • Traditional open sun drying exposes commodities to dust, insects, birds, rain, and uneven drying, leading to quality loss and contamination. Rudra Solar Dryer provides a closed, food-grade drying chamber that ensures dust-free, insect-proof, rain-protected, and hygienic drying. It delivers better colour, improved product quality, longer shelf life, reduced post-harvest losses, and higher market value.

  • The drying time depends on the type of commodity, moisture content, weather conditions, sunlight intensity, and slice thickness. Leafy commodities can dry within 3–4 hours, while sliced fruits and vegetables generally require 1–2 sunny days. Smaller pieces dry faster than whole produce, making proper cutting an important factor for efficient drying.

  • Yes. Rudra Solar Dryer is manufactured using Food Grade Aluminium Construction, food-grade aluminium trays, double UV-protected polycarbonate sheets, industrial dust filters, and insect-proof air filters. This ensures safe, hygienic, and contamination-free drying, making it ideal for commercial food processing and value-added agricultural products.

  • Yes. The standard Rudra Solar Dryer operates completely on solar energy. The solar panel powers the DC fans, while sunlight provides the thermal energy required for drying. For customers requiring continuous drying during cloudy weather or at night, Rudra Solar Energy also offers Hybrid Solar Dryers with electric backup.

  • Rudra Solar Energy offers Solar Dryers in multiple capacities ranging from 2.5 KG to 500 KG, along with custom industrial models for large-scale processing. These dryers are suitable for farmers, SHGs, FPOs, cooperatives, NGOs, food processing industries, exporters, startups, and micro enterprises looking to increase production and profitability.

  • No major installation is required. Rudra Solar Dryer is supplied as a Ready-to-Use Plug & Play machine. Customers simply unpack the dryer, connect the solar panel, and begin drying. Built with high-quality, corrosion-resistant materials, the dryer requires very little maintenance and is designed for long-term reliable performance.

  • Rudra Solar Energy is one of India's leading Solar Dryer manufacturers, providing advanced solar drying technology for 400+ commodities. Our dryers feature food-grade construction, faster drying performance, low maintenance, dust-proof and insect-proof design, eco-friendly operation, and plug-and-play functionality. Trusted by farmers, SHGs, FPOs, NGOs, food processors, exporters, and entrepreneurs across India and internationally, Rudra Solar Dryers help reduce post-harvest losses, improve product quality, extend shelf life, and increase income through value-added food processing.

  • The Solar Cooker Is device which uses Solar radiation As main source of energy and Convert Sun Light Radiation In to heat And that heat is Used For Cooking.

  • Cooking takes 1.25 to 2 hours. Cooking time depends on intensity of sunshine and the nature and quantity of material to be cooked. Hard meat and pulses take some more time to cook.

  • Food cooked in Rudra Solar Cooker tastes much better than food cooked over conventional stoves. In slow cooking, natural flavors and fiber retains its shape. Cooked food rises to its full volume and is fluffy. The food is always tender and more palatable

  • Almost anything, which you can cook in a conventional electric or gas oven, can be cooked in a Rudra solar cooker. You can bake, boil and steam using any of your favorite recipes. You can not fry and you can’t make chapatti.