Why mix soy hulls with wood based mushroom substrate?

Adding soy hulls to a wood substrate can benefit mushroom cultivation in several ways. Soy hulls, which are the outer layer of soybeans, can be used as an additive for wood-based substrates due to their nutrient content and physical properties. Here are a few reasons why soy hulls may be beneficial:

  • Nutrient enrichment: Soy hulls contain carbohydrates, proteins, and other nutrients that can enhance the nutritional profile of the wood substrate. This can provide a more balanced diet for mushroom mycelium, supporting its growth and development.
  • Increased moisture retention: Soy hulls have a high water-holding capacity, meaning they can retain moisture and prevent the substrate from drying out too quickly. Maintaining optimal moisture levels is crucial for mushroom cultivation, and soy hulls can help in this regard.
  • Enhanced structure and aeration: The addition of soy hulls can improve the physical properties of the substrate. They can help create a more stable structure, preventing compaction and allowing for better airflow within the substrate. Improved aeration is vital for the growth of healthy mycelium and the formation of fruiting bodies (mushrooms).

    Incorporating soy hulls into a wood substrate for mushroom cultivation can contribute to better nutrition, moisture retention, and substrate structure, all of which can positively influence the growth and yield of mushrooms.


    We have an assortment of All-In-One Mushroom Grow Bags aka "Fun Bags' for your growing pleasure. Fun bags are literally a window into how mother nature produces mushrooms right inside the bag. 

    Our fun bags are a great family or school project. Teach kids how to grow their own mushrooms and they will never go hungry. No yard needed. Grow right indoors from beginning until harvest. Bags can also be grown outdoors. 

    These bags to not contain spores or liquid culture. Inoculate with your favorite mushroom spores or liquid culture. 

    If you have any questions or need advice please contact us.