10 Ib Sterilized Masters Mix XLSA Unicorn Bag

$30.00

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Go big or go home. The XLSA Unicorn Bag is the largest bag Unicorn offers and allows for 10 pounds of substrate which results in huge flushes of large mushrooms.

The 10 lb Master’s Mix from Rhizo Funga is a professional-grade bulk substrate ideal for large fruiting blocks, commercial grow setups, or high-yield monotubs. Each bag contains a perfectly balanced 50/50 blend of hardwood sawdust and soy hulls, hydrated to precise field capacity for rapid mycelial colonization.

This size is packaged in a genuine Unicorn XLS-A bag, featuring a 0.2-micron filter patch for clean gas exchange. The XLS-A’s durable, high-volume design provides the internal space needed for heavy fruiting and strong flush performance.

Engineered for Performance

Master’s Mix is trusted by growers for its rich nutrition and consistent results. It promotes vigorous growth, dense mycelial structure, and multiple flushes under proper conditions.

Moisture Content: Each 10 lb bag is hydrated precisely for efficient colonization and yield optimization.

How to Use

Thoroughly mix 2 lbs of colonized grain spawn with each 10 lb Master’s Mix bag for ideal colonization speed.

If inoculating with liquid culture, adhere a sterile injection port to the bag, sanitize with alcohol, and inject 10 cc of liquid culture. Mix evenly to distribute the mycelium throughout the substrate.

Use within controlled environments such as tents, monotubs, or fruiting chambers for best results.

Best Practices

Wait approximately one week after delivery before inoculation to confirm sterility post-shipping.
Inoculate with clean technique using nitrile gloves and 70% isopropyl alcohol.
Avoid flame and alcohol in enclosed spaces.