Solar dryer

Historically, food and clothing was dried in the sun by using lines, or laying the items on rocks or on top of tents.

[2] In Mongolia cheese and meat are still traditionally dried using the top of the ger (tent) as a solar dryer.

[2] They can be very simple, just a tilted cold frame with black cloth[7] to an insulated brick building with active ventilation and a back-up heating system.

[8] One of the advantages of the indirect system is that it is easier to protect the food, or other substance, from contamination whether wind-blown or by birds, insects, or animals.

Solar dryers not only make the drying faster, it also prevents dust, pathogens, bird droppings, and interference of external agents that affect the quality of the food.