The moisture content of onions is reduced during the drying process, but the exact moisture content depends on factors such as the type of dryer, operating parameters, and the initial moisture content of the onions. Under normal circumstances, the moisture content of onions dried by a mesh belt dryer can usually be reduced to between 10% and 15%.

The mesh belt dryer is a commonly used continuous drying equipment that dries onions through hot air circulation and mesh belt transmission. During the drying process, hot air blows through the onions, heating and evaporating the moisture on the surface and inside the onions, and then discharges it through the exhaust system. Dryers usually have adjustable parameters such as temperature, humidity, and wind speed so that they can be adjusted and controlled as needed.

It is important to note that the initial moisture content of the onions, dryer performance and operating parameters will have an impact on the final moisture content. Additionally, onion variety and size may also cause differences in moisture content. Therefore, in the specific drying process, parameters can be set according to your own needs.

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