Dry Substrate Mix

Freshness That Lasts

Unlike pre-made substrates that go stale on the shelf, our dry mix stays clean and shelf-stable until you hydrate it. That means your mushrooms always start in a fresh, nutrient-rich environment for faster colonization.

Substantial Yield, Superior Value

Each kit produces 10 lbs of premium substrate with the right balance of moisture retention and nutrients. That’s enough for a standard monotub or several shoeboxes, giving you more substrate and more mushrooms without the extra cost.

Simple and Efficient

Just add hot water. With a bucket, a lid, and a stove, you can prepare your substrate in less than an hour. An easy-to-follow guide is included, making the process hassle-free even for first-time growers.

Expertly Formulated Blend

Our recipe is carefully balanced with:

• Coco Coir – Provides structure and steady moisture while staying light and airy.
• Vermiculite – Improves water retention and keeps the substrate stable.
• Gypsum – Adds calcium and sulfur, balances pH, and prevents clumping.

This proven blend creates the perfect foundation for strong mycelial growth and reliable harvests.

Works with All Grow Methods

Whether you’re using a monotub, shoebox, or grow bag, this substrate adapts easily to different cultivation styles and supports both gourmet and medicinal mushroom varieties.

Customer Satisfaction Promise

We back the quality of every kit we sell. If your substrate arrives damaged or defective, we’ll replace it free of charge. And if you have any questions during prep, our dedicated support team is ready to help.