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3lb coco coir vermiculite gypsum azomite mushroom substrate bag

Sterile CVGA Dung-Loving Mushroom Substrate

Crafted with care and love, our premium blend of sustainably sourced coco coir, vermiculite, gypsum, lime, and Azomite (CVGA) creates the perfect balance of moisture retention, airflow, pH, and mineral array for healthy, optimized, mycelium growth.

Key Features

  • Sustainably Sourced Coco Coir: Ensures proper hydration retention and fibrosity for structural integrity.
  • Vermiculite: Provides adequate airflow and structural integrity along with silicate minerals for strong mycelium.
  • Gypsum: Adds micronized bioavailable calcium to promote healthy mycelium. 
  • Lime: Increases and stabilizes pH for optimal growth.
  • Azomite: Adds over 70 trace minerals, boosting overall vigor.
  • A Better Grow Bag: All substrates come sterilized in 3 mil plastic Olympus Myco Mini Lightning Dual 0.2 Micron Filter Mushroom Grow Bags, ensuring tough, resilient, malleable bag integrity along with higher fresh air exchange with the dual filters and 10mm band seal under HEPA filtration for sterility and ease of use for your cultivation process.  Other bag manufacturers only have one filter and are rated for 2-2.2 mil plastic which is far less stable.
  • Advanced Sterilization: Processed in our industrial autoclaves at 15-17psi for 5 hours, ensuring contaminant-free, sterile grains.
  • Shelf life: Stable for upwards of 6+ months (successful trials have been ran on 12-18-24 month old substrates with no quality issues).
  • Storage: Store between 45°F and 70°F to maintain product quality.

Product Details

Weight 3.5lb coco coir based substrate 10lb coco coir based substrate
Bag Olympus Myco Mini Lightning Dual 0.2 Micron Mushroom Grow Bags Unicorn XLSA Bag
Bag Type Gusseted Gusseted
Bag Size 8" x 5" x 20" 10" x 5" x 24"
Bag Material 3.0 mil Polypropylene (PP) 2.2 mil Polypropylene (PP)
Filter Type Dual Filter Single Filter
Filter Size 1.5" x 1.5" 2" x 3"
Filter Pore Size 0.2 Micron 0.5 Micron


Disclaimer: Results may vary based on growing conditions. Follow product instructions for best results. Sales are final, with concerns addressed case-by-case. Please review our policies for more information.

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