3-Grain Mini All-In-One Mushroom Grow Bag (2 lb)

Unlock the potential of small-batch mushroom cultivation with our 3-Grain Mini All-In-One Mushroom Grow Bags + Casing Mix (2 lb). Designed for growers who demand performance and simplicity, this compact dual-bag solution merges a high-yield, organic grain base with a fortified casing layer — delivering a streamlined workflow from inoculation to fruiting.

Each bag features a premium blend of organic rye berries, wheat berries, and millet — the tri-grain foundation cultivated for vigorous mycelial growth. This 3-grain mini substrate is fully hydrated, sterilized, and ready-to-use straight out of the box. Above this grain spawn foundation lies a carefully layered casing mix enriched with coco coir, vermiculite, gypsum, worm-castings tea, calcium and sulfur. The casing layer is engineered to retain moisture, promote robust pinset formation and encourage healthy flushes — giving your mushrooms the optimal environment for fruiting.

Designed with precision, each bag includes a self-healing injection port for sterile inoculation and a 0.5-micron filter patch for effective gas exchange, reducing contamination risk and ensuring strong colonization. The dual-bag pack is perfect for testing new strains, running parallel grows, or scaling up small-scale production without the hassle of separate grain jars, transfer steps or multi-container setups.

Key Features & Benefits:

• Tri-Grain Blend: Organic rye, wheat, and millet create a nutrient-rich mycelial base for faster colonization and higher yield potential.
• Casing Mix Layer: A pre-loaded top layer of coco coir, vermiculite and enriched nutrients supports fruiting dynamics and enhances yield quality.
• All-in-One Convenience: Grain spawn and casing mix combined into one bag—eliminating the need for traditional transfer steps and reducing contamination points.
• Sterile, Ready to Use: Each bag arrives sterilized and pre-hydrated—ready for immediate inoculation with your choice of spores or liquid culture.
• Compact Size for Flexible Spaces: At 2 lb per bag and sold in a 2-bag pack, these grow bags are ideal for kitchen counters, lab benches, tight spaces, or small-scale gourmet/medicinal production.
• Professional Quality: Developed with a chef-mycologist mindset, integrating high-performance substrate science with user-friendly plug-and-play convenience.

How to Use:

1. Inoculate each bag via the injection port using 2–3 cc of your preferred spore or liquid culture solution.
2. Incubate in a clean, dark area at approx. 75-82 °F until the substrate is fully colonized. The tri-grain blend accelerates colonization times.
3. Once colonized, introduce fresh air exchange and humidity to transition into fruiting mode. Use the casing layer to initiate pinset and fruit development.
4. Harvest when mushrooms mature; the casing layer supports multiple flushes for sustained yield.

Whether you’re a professional chef-mycologist growing gourmet mushrooms for a five-star restaurant, a boutique producer scaling for retail, or a dedicated hobbyist experimenting with exotic strains, this all-in-one solution simplifies the substrate process and elevates performance. Skip the grain cooking myths, set-up guesswork, and separate casing steps — dive into a refined, high-yield system tailored for serious growers.

Grow smarter. Grow faster. Let the 3-Grain Mini All-In-One Mushroom Grow Bag + Casing Mix (2 lb,)be the core of your next successful cultivation run.