Admin What is sun drying method of food preservation?
Solar drying is a process of drying foods by harnessing the heat energy of the sun in a special dehydrator that not only increase the temperature but also, improves the air flow. This speeds up the process of drying the food and reduces the risk of food getting moldy or spoilt.
What are the benefits of sun drying?
Advantages of solar dryers
- Drying is faster because inside the dryer it is warmer than outside.
- Less risk of spoilage because of the speed of drying.
- The product is protected against flies, pests, rain and dust.
- It is labour saving.
- The quality of the product is better in terms of nutrients, hygiene and colour.
What is sun drying in agriculture?
Open sun drying is the most commonly used method to preserve agricultural products like grains, fruits and vegetables in most developing countries. Heat is generated by absorption of solar radiation on the product itself as well as the internal surfaces of the drying chamber.
What is the purpose of drying?
The purpose of drying is to retain the physico-chemical properties of materials, to ensure, in many cases, the preservation of materials over prolonged periods, and to eliminate excess weight in shipping.
What is the disadvantages of sun drying?
There are, however, a few disadvantages of preserving food through the process of sun drying as well. Firstly, temperature cannot be controlled and food may tend to get overheated at times. Also, the sun drying process is slightly risky as it involves heavy reliance on unpredictable weather conditions.
What is solar drying explain giving example?
Direct and indirect solar dryers Direct solar dryer: In these types of dryers, food or clothing is exposed to the sunlight directly. Indirect solar dryer: In these types of dryers, black surface is exposed to sunlight. The black surface heats the incoming air. The heated air further dries the substance.