Why are heat pumps effective in traditional craft villages in Vietnam?
Vietnam has craft villages producing a number of traditional products such as producing dried vermicelli, dried vermicelli, dried rice paper, and dried fruits and vegetables such as mushrooms, litchi, longan, potatoes, cassava, etc.
These products are currently mainly produced and processed by manual methods, cooked with firewood or charcoal or sun-dried, which is a drying process by using hot air to evaporate water from the inside. This process helps to preserve food for a long time, these methods are often used by people in highland and rural areas because of their low cost, taking advantage of available raw materials.
During the production process with charcoal, it will affect the quality of the product. It is not considered a clean, safe product, and it is difficult to adjust the temperature.
Drying in the sun, needs a large area, long exposure time because it depends on the sun, can be affected by dirt or insects.
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hanh Ngo commented
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