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Different Mushroom Bag Sealing Methods in Industrial Mushroom Cultivation

In industrial mushroom cultivation, the choice of bagging method plays a crucial role in determining the sealing, breathability, and mycelium growth of the substrate bags. Different bagging methods are suitable for different mushroom species and production requirements. Choosing the right method can effectively accelerate mycelium growth, reduce contamination risks, and improve mushroom yield.

1. Sealing with inoculation stick Inserting

The nest mouth with insertion stick method involves inserting an inoculation stick into the center of the bag opening after filling it with substrate. This creates a small hole that facilitates inoculation and mycelium growth. The process requires a specialized insertion stick machine to ensure proper hole depth. This method promotes rapid mycelium colonization and enhances mushroom yield, making it suitable for mushrooms like shiitake and oyster mushrooms that require central inoculation.

2. Ring and Cap Cover Method

The ring and cap cover method involves placing a plastic ring around the bag opening after filling and then covering it with a breathable cap. The process includes securing the plastic ring at the bag opening and capping it to maintain optimal air exchange. This method effectively prevents contamination while ensuring good breathability, which supports healthy mycelium growth. It is widely used for enoki mushrooms, king oyster mushrooms, and other species that require high bag breathability.

3. U-Shaped Clip Sealing Method

The U-shaped clip sealing method uses a U-shaped clip to seal the bag opening after filling. The process involves using a specialized clipping machine to fasten the clip, ensuring a tight seal. This method is simple, highly effective at preventing contamination, and ideal for large-scale automated production. It is commonly used for oyster mushrooms and Agrocybe aegerita (chicken leg mushrooms), which require a well-sealed environment.

4. Rope Sealing Method

The Rope sealing method involves manually or mechanically tying the bag opening with a string after filling. This method is simple and suitable for small-scale production. However, improper sealing may lead to poor air exchange, affecting mycelium growth and increasing contamination risks. Therefore, it is typically used for mushrooms with lower breathability requirements or as a temporary sealing method.