Passed the ISO9001 quality system certification and the establishment of industrial drying industry alliance standards under the guidance of the Chinese Standardization Research Institute.
- May 03, 2019 -
The moisture content of Morchella is very high. We should pay special attention to the control of temperature and humidity during drying. The moisture content of Morchella esculenta collected in different batches was different. Generally speaking, the water content of the first crop of mushrooms is relatively low, and the water content of the second crop of mushrooms and the third crop of mushrooms increases in batches, which can be prolonged on the basis of the drying experience of the first crop of mushrooms. Taking the drying of the first stubble of mushroom as an example, this paper introduces the experience of heat pump dryer in drying morchella:
1) In the early drying stage,
Morchella which does not need refrigeration and preservation is sheared according to different lengths and discharged on the drying screen. The drying screen is pushed into the oven of the dryer, and the closed door of the oven starts to start the drying machine. The starting temperature should not be lower than 35 C. It is better to start at 35 C. and humidity should be controlled within 70% for about 3 hours. Morchella should be qualitatively colored at low temperature to ensure its full shape and no collapse.
2) Temperature rising and moisture excretion
Temperature rising in the range of 40 45 C, humidity dropping to 55%, baking for about 2 hours, then Morchella contracted and moisture decreased significantly.
3) Strengthened drying and dehumidification
The temperature rises to about 50 ~C, and the temperature is set at 35%. Continue drying for about 2 hours, and continue to strengthen the drying and dehumidification of Morchella. At this time, the surface of Morchella is basically dry, but the mushroom body, especially at the junction of stalk and cap, is still soft and not completely dry. At last, the high temperature drying
temperature rises to 53-55 C, and the temperature drops to 15%. High temperature drying is carried out to realize the complete drying of Morchella. It should be emphasized that in the drying process of Morchella, the temperature should not rise too fast. It is more suitable at about 5 C per stage. The moisture content of the baked Morchella is about 12%. The shape of the stalk is full, the stalk is white, the cap is brown or black, and the odor is fragrant. In addition, more than 95% of fungi such as Boletus, Bamboo Sun, Matsutake, Ganoderma lucidum, Hericium erinaceus, Auricularia auricula, Agaricus blazei, Pleurotus eryngii, Tea Tree Mushroom, Russula mushroom, Mushroom, Flammulina velutipes, Coprinus comatus, Mushroom slider, Lentinus Edo can be dried by heat pump dryer, in order to achieve the purpose of energy saving, environmental protection, efficient and intelligent operation for drying high-quality dried mushrooms.
5, softening
After drying, do not rush to pack the Morchella immediately, but leave it in the air for 10-20 minutes to soften its surface slightly, otherwise the dry Morchella will break and be damaged during the process of bagging.
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