A solar dryer is a device, equipment or structure that utilizes solar energy (power of the sun) to dry (reduce moisture content from) various agro-products (agriculture produce) such as fruits, vegetables, grains, flowers and herbs. It typically consists of a drying chamber, drying racks or trays, heat absorber and fan system or an air circulation

Although solar dryers are optimized for use in sunny and warm weather, they can still function in overcast or cloudy conditions, albeit with longer drying times. There are solar dryers that have been modified/incorporated with (hybrid) other heating systems like electricity and biomass systems to enable continuous drying operation during nighttime hours when sunlight is unavailable.

The cost of constructing a solar dryer is dependent on size, design, and materials to be used. In kenya, the cost starts from Kshs. 65,000.