Myco Labs Premium Mushroom Substrate Mix – Pasteurized, 5 LBS, Dung & Grain Friendly

Meet Myco Labs Premium Bulk Mushroom Substrate Mix, a purpose-built growing medium designed for a wide range of dung- and grain-loving mushrooms. Each 5 lb bag arrives pre-hydrated and pasteurized, so you can jump straight to inoculation with your preferred grain spawn. The pasteurization method is designed to balance essential nutrients and minerals with microbial safety, helping to preserve a nutrient profile while reducing potential competitors. The formulation also emphasizes moisture management, aiming to help you maintain suitable conditions during colonization and fruiting. This substrate is built for practical, real-world use, not a guaranteed result, and it invites you to explore what may be possible in your setup.

What makes it different

• Preserves beneficial nutrients and minerals while reducing spoilage risk.
• Balanced nutrient profile supports mycelial development and consistent hydration.
• Moisture management designed to help achieve field capacity without oversaturation.
• Pre-hydrated and pasteurized in 5 lb bags for immediate use with grain spawn.
• Calcium+ mineral blend supports stable pH and provides trace minerals for growth.

How to use

Designed for compatibility with most grain spawn, this substrate can be mixed with your inoculant, spread in a suitable container, and kept in appropriate conditions. Ensure adequate gas exchange and stable temperature to support colonization.

• Open the bag, loosen the substrate, and inoculate with your preferred grain spawn.
• Maintain moisture and aeration; monitor temperature and humidity to support colonization and fruiting.
• Use clean, closed or semi-closed setups to minimize contamination risk.
• Store unused portions in a cool, dry place to preserve readiness for future batches.

Why choose Myco Labs

In our cultivation line, this substrate offers a reliable base for experimentation and consistent performance, grounded in practical, real-world use. It is not a guarantee, but a thoughtful design informed by research and grower feedback that aims to support your growing journey.