CVG sterile bulk substrate 3lb grow bags for mushroom cultivation
10lb CVG sterile bulk substrate bag for monotub mushroom cultivation and larger grows

Price range: $12.99 through $36.99

Clean, simple, and built to work. Our CVG Sterile Bulk Substrate combines coco coir, vermiculite, and gypsum in a properly hydrated and sterilized blend designed for reliable colonization and strong performance across a wide range of mushroom projects.

Available in:

  • 3lb – Standard Grow Bag
  • 10lb – Monotub Bulk Bag

No gimmicks. No glitter. Just clean ingredients and solid preparation from experienced cultivators.

  • Check Mark Satisfaction Guaranteed
  • Check Mark Secure Payments

CVG Sterile Bulk Substrate

Our CVG Sterile Bulk Substrate is a clean and reliable blend of coco coir, vermiculite, and gypsum prepared for mushroom cultivation workflows requiring consistency and proper hydration.

This substrate is designed to provide balanced moisture retention, strong structure, and dependable performance across a wide range of growing environments. Each bag is prepared with clean ingredients and sealed in high-quality grow bags for convenient handling and use.

Built from practical cultivation experience, this is straightforward substrate made to perform without unnecessary fillers, marketing hype, or overcomplication.

Available Sizes

3lb – Standard Grow Bag

Perfect for:

  • all-in-one workflows
  • hobby growers
  • 1 tub setups
  • testing new genetics

10lb – Monotub Bulk Bag

Perfect for:

  • monotubs
  • production runs

Features

  • Coco coir, vermiculite, and gypsum blend
  • Properly hydrated and sterilized
  • Clean ingredient preparation
  • High-quality grow bags
  • Consistent moisture retention
  • Designed for reliable colonization

Clean ingredients, good prep, and made to work.

Size

3lb – Standard Grow Bag, 10lb – Monotub Bulk Bag