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Masters Mix - Gourmet Mushroom Cultivation

Masters Mix: The ideal substrate for growing top-notch gourmet mushrooms. Our blend of oak hardwood sawdust and soybean hulls is expertly crafted to nurture your mushrooms to perfection.


  • Oak Pellets: Oak pellets serve as an exceptional source of nutrition for your mushrooms. They undergo rigorous screening to eliminate any unwanted debris, ensuring a pristine and sterile growth medium for your fungi.
  • Soybean Hulls: The soybean hulls in our Masters Mix strike the ideal balance between moisture and aeration. They play a crucial role in promoting robust mushroom growth while acting as a natural source of nitrogen. This supports the development of strong mycelium networks and bountiful fruiting bodies.

      Unmatched Quality and Convenience:

      Masters Mix is composed of 50% oak hardwood and 50% soy hulls, perfectly hydrated, and packaged in a Unicorn XLS-A or Unicorn 14A polypropylene bag. It undergoes sterilization in a commercial-grade autoclave, ensuring it arrives ready for use. 


      • Keep cool
      • Stable for up to 30 days or more
      *Legal Disclaimer: We assume no responsibility for your usage of the product. Sales are final, and any product concerns will be addressed on a case-by-case basis.
      Regular price $12.99
      Regular price $18.00 Sale price $12.99
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      Shipping calculated at checkout.
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      Unlock the Secrets: What's Inside Your Substrate

      • 100% Oak pellets

        Oak pellets excel in mushroom substrate for several reasons. They offer rich nutrients essential for mycelium growth and mushroom development, while their convenient form streamlines substrate preparation. With optimal moisture retention and texture for colonization, oak pellets suit various mushroom species, ensuring successful cultivation and higher yields.

      • Soy Hull Pellets

        Soy hulls excel in mushroom substrate for their rich nutrients and fibrous structure, promoting mycelium growth and colonization. Additionally, they're cost-effective and readily available, making them a practical choice for cultivators.

      • Revers Osmosis Water

        Reverse osmosis (RO) water is ideal for mushroom substrate because it's free from contaminants and minerals that might hinder mycelium growth. Its purity ensures a clean hydration source, preventing substrate imbalance and promoting optimal conditions for mushroom development. Overall, RO water enhances substrate quality and maximizes mushroom yields.

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      Customer Reviews

      Based on 2 reviews

      Have not used the item yet! However some people complained about shipping time, my items shipped the next day and was in my hands 3 days later. Very quick shipping, clean, professional and sterile looking bagged Substrate. I’m going to say it is perfect for mycologists

      Thanks for sharing your experience! It's great to hear the shipping was fast and the substrate arrived in perfect condition. Should any issues ever arise just reach out and we will be here to help!

      william pierson (Ypsilanti, US)

      I absolutely love my master mix when I’m growing my lions mane and it colonizes so fast !

      Hi there,

      Thank you for taking the time to leave a review for our Masters Mix Substrate. We're so glad to hear that you love using it for growing your lions mane and that it colonizes quickly. Keep up the great work and happy growing!

      Mycology Simplified Team