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Masters Mix Substrate – 50/50 Hardwood & Soy Hull Blend
Premium Ingredients
- Oak Hardwood Sawdust – Clean, screened hardwood providing structural support and long-lasting nutrition.
- Soybean Hulls – Nitrogen-rich supplement that enhances mycelial growth and promotes strong flushes.
Why Choose Masters Mix?
- 50/50 Balanced Formula – Ideal carbon-to-nitrogen ratio
- Hydrated to Field Capacity – Proper moisture for optimal colonization
- Commercial Autoclave Sterilized – Prepared for clean, reliable results
- Packaged in Unicorn XLS-A or 14A Bags – Durable, breathable polypropylene
- Ready to Inoculate – No prep required
Quick Start Guide
- Inspect – Ensure bag and filter patch are intact.
- Inoculate – Add colonized grain spawn in a clean environment.
- Mix Thoroughly – Break up and distribute evenly.
- Incubate – Store at 65–78°F until fully colonized.
- Initiate Fruiting – Introduce fresh air and proper humidity.
Storage
- Store sealed between 45–70°F
- Best used within 30–45 days of receipt
- Avoid freezing or prolonged heat exposure
Pairs well with our Sterile Grain Bags for a complete growing setup.
For laboratory and research use. Sales are final. Product concerns are reviewed case-by-case.
Unlock the Secrets: What's Inside Your Substrate
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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.
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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.
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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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Let customers speak for us
the grain: i picked milo took off nicely, 2 cc’s per bag, 5 bags per syringe. Works very nice, bags will be done withing a week. I should break and shake right now but, I think ill wait another week or so. As for the bulk substrate, looks great ive been keeping it in our storage room, its super chilly in there. And, it should work great when the time comes. Personally, ive never had issues with any of the bags ive purchased. I hardly inoc in my SAB anymore, as theres no need I just flame sterilize the needle, and inoculate.
The best , that can be obtained.
They are what they are.
Haha I finally got some before they ran out!
It works 💪
Exactly what i wanted!
Great products!
Absolutely great grains! Everything I have ever purchased from here is amazing and solid 🙌🏽
Everything arrived safely and packaged very thoughtfully. Grain looks great!
Superb quality as always 👌🏽
Finally got around to using the substrate and wow, loving my results. Forever gonna be my go to!! Def beats making my own.
Great stuff. 👍
Plates looked great! All arrived with no spots of contamination and only one had any condensation on them!
Bags arrived intact and packed with care. Signs of growth in just a couple days! So far so good!
Came packaged vacuum sealed which is great and i really appreciate that, 🙏🏽 smells very clean and everything came shipped way faster than expected, will post another review after results! Highly recommend 👌🏽
Great moisture content, all in all a really good product cant go wrong here, the myc loves this stuff, truly.