As we mentioned before, microwave drying equipment is not uncommon in our life. It has important application in drying Gastrodia elata. How can it be applied? Next, we will make an overall analysis for you from some aspects, so that you can understand its application in many ways.

Microwave drying equipment

Gastrodia elata processing steps are roughly as follows: Gastrodia elata classification screening - Cleaning - Cooking - drying with heat pump dryer - finished product packaging. Gastrodia elata should be kept free of collision, beating and scars after harvesting, and then gently brush the sediment off the hemp body with a soft brush. Generally, there are water boiling and cage steaming methods for cooking. Here, the application of drying equipment of Gastrodia elata is emphasized.

Gastrodia elata is tuber-packed, with initial moisture content of 70-85%, and has the characteristics of viscous, heat-sensitive and polysaccharide. Therefore, in the drying process of microwave drying equipment, attention should be paid to dehumidification and sweating. The following four key drying steps are summarized as follows:

The first stage is dehumidification. The drying temperature is about 35 - 55 C and the drying time is about 15 - 20 hours. The first sweating of Gastrodia elata should be carried out after completion.

The second stage: the drying temperature is about 30-45 C and the drying time is about 8-10 hours. The second sweating of Gastrodia elata was completed.

The third stage: dehumidification is still the main method. The drying temperature is about 30-40 C and the drying time is about 8-12 hours. Gastrodia elata was dried and sweated for the third time.

The fourth stage: the drying stage, the temperature is set at about 35 C, with less dehumidification and mild drying, so as to avoid sugar decomposition and deterioration, foaming, until the final moisture content of Gastrodia elata is less than 10%. Although this period is longer, the color and luster of the dried Gastrodia elata is bright, the meat is thick and solid, and the effective ingredients of gastrodin are ideal. Preservation.

In the operation of microwave drying equipment, it should be noted that the drying temperature and humidity parameters of different varieties and heads of Gastrodia elata need to be moderately adjusted. In the drying process, there will be bubbles under the skin of the hemp body, which can be punctured and deflated with very fine bamboo needles, and then smoothed and smoothed. In addition, Gastrodia elata is rich in polysaccharides and other nutrients, easy to mildew and live insects, so if the dried Gastrodia elata is not sold immediately, it should be tightly sealed with double-layer thickened plastic bags in time, then placed in cartons or wooden boxes, and stored in light, ventilation, cool, rodent-free places.

Microwave drying equipment

Above is the specific application of microwave drying equipment in drying Gastrodia elata introduced by us. In the drying stage, we need to pay attention to some details. In addition, in the rainy season, we should check frequently, find problems, take out the drying in time, or do other corresponding treatment.