Fruits and vegetables are very seasonal and are particularly abundant year-on-year. Preserving these fruits and vegetables can prevent high accusations and can be achieved during the exit period at the cost of pay. Drying out fruits and vegetables is essential for the preservation of food. The technique is done using artificially fossil fuels or placing the fruit and vegetables under the sun. The first method has an expensive and environmentally negative impact, and the second method is entirely dependent on the weather. By contrast, the use of solar dryers is relatively cheap and efficient. Some solar dryers run without electricity or fossil fuels. This paper looks at a variety of solar panels that are widely used today. Active and useless design solar dryers are an environmental influence on solar power (Harness). This plays a crucial role in the solar dryer. They are often easy and relatively cheap to make, often showing efficient and active designs based on low-quality products or the use of compulsory convection. The indirect and direct, design dryers that have shown potential in drying food products in tropical and subtropical countries are reviewed. Such low-cost food drying technologies can be easily introduced in rural areas of developing and developed countries. This technology aims to reduce the quality of production, improve product quality and promote overall sanitation. Therefore, this review should be used to adequately guide individuals by selecting appropriate drying designs for the conditions given to them and later assessing the execution of the system for developing countries such as Ethiopia.
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Daksa et al. (2023) studied this question.