Organic Rye Berry Mushroom Spawn Bag (3 lb)
Organic Rye Berry Mushroom Spawn Bag (3 lb)
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Warranty & Refund Policy
Warranty & Refund Policy
Within the first 30 days of placing your order we guarantee that your substrate product is free from defects or we will replace it and ship the replacement product for free. If the product has been already been used we will issue a store credit only for product purchase price minus a 20% processing fee. Shipping fees and sales tax are non-refundable.
To file a claim please take at least 3 close up photos of the injection port and each bag or jar showing us the issue so we can review your claim. We offer replacement products only on defective or damaged products. No need to return products.
Spawn Bag & Jar Tips
Spawn Bag & Jar Tips
After injecting your bag or jar, give it a gentle shake. For bags, make sure any grains stuck in the upper portion are knocked down so they can colonize properly. There’s no need to break up the spawn during colonization unless you prefer to. If you choose to do so, wait until the bag or jar is roughly 50% colonized before mixing.
User Guide
User Guide
Download our substrate inoculation guide here.
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SKU: SKU:RYEBAG1x3LB
🌾 3-lb Organic Rye Grain Mushroom Spawn Bag — Sterile, Ready to Inoculate
Our 3-lb organic rye grain mushroom substrate spawn bag is designed for growers who demand professional results right out of the box. Each bag is crafted with precision, using premium whole rye grain hydrated with food-grade calcium and sulfur for ideal pH balance and nutrient density. Whether you’re cultivating oyster, lion’s mane, reishi, or shiitake mushrooms, this sterile rye grain spawn bag with injection port and 0.5-micron filter provides the clean, controlled environment your mycelium needs to thrive.
🧑🔬 Chef-Mycologist Precision for Perfect Hydration
As chefs and mycologists, we treat substrate preparation like an exact science. Each batch of organic whole rye grain is boiled to perfect hydration—moist yet firm, never overcooked—to ensure optimal texture for rapid mycelial colonization. After hydration, the grain is sterilized inside the bag at 15 PSI, guaranteeing a contamination-free substrate that’s ready to inoculate the moment it arrives.
Every sterile 3-lb rye grain mushroom substrate spawn bag is vacuum-sealed immediately after sterilization to maintain freshness and extend shelf life. This process ensures your grains stay hydrated, loose, and perfectly prepared for inoculation with your preferred culture.
🌬️ Built-In Sterility and Smart Design
Each organic rye berry spawn bag features:
- A self-healing injection port for easy and sanitary inoculation.
- A 0.5-micron gas exchange filter patch that allows proper airflow while blocking contaminants.
- Heavy-duty, heat-sealed construction to preserve sterility during shipping and storage.
These features make our organic rye grain spawn bags ideal for home mycologists, educational labs, and small-batch mushroom farms. No pressure cooker, jars, or special tools are required—just inoculate and grow.
🌱 Simple to Use — Ready to Inoculate Out of the Box
- Inoculate: Inject about 3 cc of your favorite spore syringe or liquid culture directly into the injection port.
- Distribute: Gently massage and shake the bag to evenly mix the inoculant throughout the grains.
- Colonize: Place the bag in a clean, temperature-controlled environment suitable for your chosen mushroom strain.
- Observe: Within days, you’ll see white mycelium spreading throughout the bag, indicating healthy colonization.
Once fully colonized, this organic rye grain mushroom spawn bag can be used to inoculate bulk substrates such as sawdust, coco coir, or straw, depending on your species and growing method.
(Spores not included.)
💪 Key Features
- 3-lb organic rye grain spawn bag — fully sterilized and vacuum-sealed
- Hydrated with food-grade calcium and sulfur for balanced nutrition
- Self-healing injection port for clean, simple inoculation
- 0.5-micron gas exchange filter patch for optimal air flow
- Sterile, ready-to-use, and made in the USA
- Ideal for gourmet and medicinal mushroom cultivation
🌾 The Professional Choice for Home & Lab Growing
Trusted by chefs, mycologists, and commercial growers alike, our organic 3-lb rye berry substrate spawn bag delivers consistent performance and reliable yields. With balanced hydration, rich nutrition, and sterile packaging, it’s the perfect foundation for your next successful mushroom grow.
