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The preparation of culture medium includes two aspects: one is the treatment of sawdust after pre-wetting and fermentation, and the other is stirring

Next, let's talk about the treatment of sawdust after pre-wetting and fermentation

Put the outdoor pre-wetting and fermentation sawdust needed for the next day under the awning for one or two days in advance to remove excess free water, prevent the moisture content of sawdust from being affected by rain, and ensure the synchronization of mycelium spread in the cultivation bag.

Some growers purchase sapwood of Fagaceae species from imported wood processing companies and process them into sawdust (containing more phloem, high nitrogen content, low price, and less aromatic substances). Some people choose to crush apple pruning branches. Although they can be harvested twice, the quality and taste are still different from hard sawdust. Some people use plywood scraps as cultivation materials, but because they contain formalin (fungicide), they are not suitable for use. In southern China, some people use the sapwood of Eucalyptus geesteranus (Eucalyptus grandis), which is mechanically crushed (mainly 3-4 mm), piled up and fermented for more than ten days, and then used directly for Pleurotus geesteranus cultivation.