Freeze dried morel mushroom is a nutritious and precious natural edible mushroom that is popular both domestically and internationally. The freeze-drying process of morel mushrooms requires a mature set of techniques. The freeze-drying technology of morel mushrooms is a drying method that utilizes the sublimation principle to preserve the active substances and nutritional components of morel mushrooms. Utilizing the equipment of morel freeze-drying machine in conjunction with morel freeze-drying technology for large-scale production and processing, and widely used in various edible mushroom freeze-drying, wild mushroom freeze-drying and other processing applications.

Morchella has a unique aroma, rich nutrition, and delicious taste, containing various nutrients such as vitamins, amino acids, proteins, and minerals. These nutrients and active substances are basically thermosensitive substances, which can cause damage and loss when the temperature exceeds a certain level. During the freeze-drying process, it is necessary to strictly follow the freeze-drying technology of morel mushrooms. The specific freeze-drying process technology is as follows:

1. Low temperature pre freezing: freeze at -46 ℃ for 180 minutes;

2. One drying session; Temperature control range -30~+30 ℃, vacuum control: 35PA, running time of 600 minutes, temperature rise rate control;

3. Secondary drying; Temperature control range: 35~+50 ℃, vacuum control: 30PA, running time: 500 minutes, temperature rise rate control.

The morel mushrooms are processed according to the requirements of freeze-drying technology, and the selected morel mushroom freeze-drying machine equipment needs to meet the technical requirements of freeze-drying process. The specific technical characteristics of the morel mushroom freeze-drying machine equipment are:

Select contact freeze-drying equipment;

Ø Partition temperature range: -50~+80 ℃

Ø Extreme condensing temperature: -70 ℃;

Ø Ultimate vacuum degree: 2.6PA

Uniformity of partition: ± 1 ℃;

Ø Material requirements: The box, partition, material tray, etc. should be made of 304 stainless steel material;

Functional requirements: It should have functions such as setting and modifying freeze-drying process data, storing and querying freeze-drying data, controlling heating rate and vacuum, remote operation and monitoring.