6 LB. Master's Mix Substrate

Master’s Mix Culinary Blend – 6 lb Sterilized Substrate

Unlock the full potential of your gourmet mushroom harvest with our 6 lb Master’s Mix Culinary Blend. This industry-standard substrate is the preferred choice for professional growers of wood-loving species, specifically formulated to provide the high-nutrient environment needed for massive yields and high-quality fruiting bodies.

Expertly prepared by Merry Mushroom Maidens, our Master’s Mix takes the guesswork out of substrate preparation, giving you a clean, consistent, and high-performing base for your culinary mushroom projects.

The Perfect 50/50 Formula

Our blend follows the classic, proven ratio designed to maximize biological efficiency:

• 50% Premium Oak Hardwood Sawdust: Provides the essential cellulose and lignin that wood-decaying mushrooms naturally crave.

• 50% Soy Hulls: Acts as a high-protein supplement that supercharges mycelium growth and significantly increases the size and weight of your mushroom flushes.

Key Benefits

• Maximum Yields: The nitrogen-rich soy hulls in the Master’s Mix are known to produce significantly larger yields compared to growing on hardwood sawdust alone.

• Ready to Inoculate: Each 6 lb bag is hydrated to the ideal field capacity and pasteurized to ensure a contaminant-free start for your grain spawn.

• Professional Grade: This is the exact same formula used by our commercial mushroom farm to grow premium Lion’s Mane, Oyster varieties, Chestnut, and Reishi mushrooms.

• Durable Filter Patch Bag: Our heavy-duty bags feature a micron filter patch, allowing for perfect gas exchange while protecting your culture from airborne contaminants .02 microns

Product Specifications

Instructions for Use

1. Spawn Inoculation: In a clean environment (ideally in front of a flow hood or in a still air box), introduce your fully colonized grain spawn to the bag.

2. Seal and Mix: Reseal the bag and shake thoroughly to distribute the grain spawn throughout the Master's Mix.

3. Colonize: Store in a dark, room-temperature area until the substrate is completely white with mycelium. 70-75 deg. F

4. Fruit: Cut "X" shapes or slits in the bag and introduce to a high-humidity fruiting environment to begin your harvest!