SUBSTRATE
Our CVG, CVA, and Master's Mix substrates are expertly hydrated and sterilized to deliver clean, consistent performance and support strong mycelial growth.
Learn About Our Substrates
Substrates Explained
Substrate is the material your mushrooms grow in and draw nutrients from. Each blend offers a different balance of moisture retention, airflow, and nutrition to support healthy mycelial growth and strong fruiting performance.

Simple Substrate

Beginner Friendly Balanced Moisture Reliable Structure

Our Simple Substrate is designed to provide a clean, balanced environment for strong colonization and consistent performance. This blend is easy to work with and ideal for growers who want dependable results.

  • Coco coir base for moisture retention
  • Vermiculite improves airflow and structure
  • Azomite adds trace minerals
  • Clean and consistent blend

Not So Simple Substrate

Nutrient Enhanced Mineral Rich Stronger Growth

A nutrient-enhanced blend designed for growers looking to push more aggressive colonization and stronger flush potential. This recipe builds on traditional CVG-style mixes by adding natural nutrient inputs.

  • Coco coir and vermiculite for moisture and structure
  • Gypsum supports healthy mycelial growth
  • Worm castings provide natural nutrients
  • Azomite adds over 70 trace minerals

Masters Mix

High Nutrient Gourmet Species High Yield Potential

Masters Mix is a high-performance substrate widely used for gourmet mushroom production. Its nutrient density and structure make it ideal for vigorous growth and strong production cycles.

  • 50/50 hardwood sawdust and soy hulls
  • Excellent nutrient density
  • Commonly used in commercial grows
  • Designed for strong performance

What Sets Our Substrates Apart

Every substrate blend is prepared with consistency, cleanliness, and shelf life in mind. Our goal is to provide products that are dependable, easy to work with, and packaged for safe travel.

  • Prepared in quality grow bags for reliable handling
  • Vacuum sealed in a secondary bag for added protection
  • Shelf stable for up to 2 months when stored properly
  • Best stored between 45°F and 75°F in a cool, dry area

Suggested Grains

Milo - Popcorn

Ver todo

Ready for Your Next Grow?

We carry everything you need to keep things moving.

• Sterile Grain Bags • Substrates • Pre-Poured Agar Plates • Unicorn Grow Bags • Lab Supplies • Grow Kits & Refills

Let customers speak for us

from 804 reviews
Scalpel Set W/Blades
Emmanouel

Did the trick!

Scalpel Set W/Blades
Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
Emmanouel

Great agar!

Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
Parafilm
Frank

Arrived fast

Parafilm
Simple Mushroom Substrate - Ready-to-Use CVG/CVA Mix for Beginners
Kim

There is nothing simple about this stuff. Its great stuff. Holds moisturizer really well. I just purchased again for my final winter grow. Thanks for the great quality

Simple Mushroom Substrate - Ready-to-Use CVG/CVA Mix for Beginners
Small Monotub Refill Kit
Hunter

Packaged really good, did not expect

Small Monotub Refill Kit
Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
Joshua

Good agar! Will order again!

Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
K.L.

Fast speedy delivery.

Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
m.t.

As described. Fast and clean.

Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
MYPA Agar for Fungi Culturing – Sterile, High-Quality Malt Yeast Peptone Agar
m.t.

As described. Fast and clean .

MYPA Agar for Fungi Culturing – Sterile, High-Quality Malt Yeast Peptone Agar
Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
Brian

Sterile, nicely packaged, and cool color 😌

Pre Poured Sorghum Yeast Agar for Fungi Culturing – Sterile, High-Quality Sorghum Yeast Agar
12qt Shoebox Refill Kit | Mushroom Substrate and Grain
B.P.

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.

12qt Shoebox Refill Kit | Mushroom Substrate and Grain
XLS-B HORIZON UnicornBag - Mushroom Grow Bags - 5 -Micron Gas Exchange Filter Patch
Q.P.

The best , that can be obtained.

XLS-B HORIZON UnicornBag - Mushroom Grow Bags - 5 -Micron Gas Exchange Filter Patch
Syringe Tip Cap Luer Lock (10pk)
Q.P.

They are what they are.

Syringe Tip Cap Luer Lock (10pk)
25 - Sterile 50 mL Conical Tubes with Plastic Rack
Q.P.

Haha I finally got some before they ran out!

25 - Sterile 50 mL Conical Tubes with Plastic Rack
LCD Digital Scales
Q.P.

It works 💪

LCD Digital Scales