Drying of foods

In our proyect of seminary, with my group we make a oven to dry food, especifically onion

 Dry food is a method to preserve them, usually we dry beans, cereals or fish. Dry fruits and vegetables are  not very common but this simple technology is improving the diet of each person's. Tomatoes, herbs, mangoes and onions are examples of fruits and vegetables that can be dried, instead of having to sell the market when prices are low,the packages can be sell lather when the price goes high.

 It is very important to keep food clean while the  drying is in process , especially if they will be sold. Hands should be wash. The containers must be clean and dry. You have to be sure that there are not flies,in our project we only used the sun to dry food. the solar energy are well in areas with lots of sunshine and low humidity.