1, suitable cultivation time, generally 10 is suitable for mushroom cultivation from March of the following year. 2. Preparation of culture materials: sawdust and rice bran are suitable as culture materials, and it is best to accumulate 1 year or more. 3. Sterilization of bottles: the surface of culture materials should be dense, and the culture materials in each bottle should be uniform, elastic and consistent, and the height should be consistent. After the bottle cap is sealed, it should be disinfected immediately. 4. Inoculation: The surface of the culture material should be covered with strains, so that hyphae can grow evenly and effectively prevent contamination by miscellaneous bacteria. 5. Mycelium culture: transfer the inoculated bacteria bottles to the culture room in time, and control the temperature, humidity and ventilation. After 20-25 days, hyphae can be full. 6. Scratch the bacteria: The so-called scratch the bacteria means to remove the old bacterial blocks and skins with a scratch machine (or by hand). By scratching the bacteria, the fruiting body can develop neatly from the surface of the culture medium. 7. Germination promotion: After scratching, germination promotion treatment should be carried out in time, and sufficient low-temperature stimulation should be given to promote the formation of primordia. 8. Balance and inhibition: Balance is the transitional stage of inhibition treatment, and the air environment is as close to the natural state as possible to promote the differentiation and branching of mushroom buds in low temperature environment.

In short, the raw materials of Flammulina velutipes produced by regular manufacturers are rice bran, corncob, sawdust, calcium carbonate and so on. According to the amount of bacteria, the raw materials are mixed according to the schedule, and then bottled and sterilized for one day. Inoculating bacteria to culture mycelium for 28 days, peeling into culture room 1 day, budding for 8 days, inhibiting for 6 days, growing for 10 days, and harvesting for 4 days. Workers divide mushrooms into big grade A, peeled grade A, grade B and grade C for packaging. A production process takes about 60 days.