SKU: MMMSUB Category:


Sterile fruiting substrate made from a special blend. Now with worm castings. Perfectly blended to field capacity, sterilized and ready to use.

Monster Mushroom Company is proud to offer this 10 pound Sterilized Substrate Bag.

  • Everything you love in our 5lb. Bag, but NOW in a 10lb. mega size!
  • Grow the perfect mushrooms
  • Perfect for those new to mushroom farming and experienced farmers

MEGA Super Shroom Final Fruiting Substrate, 10lb each – For optimal mushroom growth. Now with worm castings!  Perfectly blended to field capacity and ready to use. A specially formulated mix of Coco, Vermiculite, Gypsum, and hydrated with Rocky Mountain Spring Water, Distilled water and PH stabilizers.This is the ideal final fruiting substrate at your fingertips, all you need to do is mix with your spawned grain and watch your mushrooms grow! This easy-to-use at-home mushroom grow substrate won’t disappoint. Shop all of our best mushroom grow kits here. Order online today!

  • Order mycology supplies here
  • Learn to grow your own mushrooms with us!

Additional information

Weight 12 lbs
Dimensions 10 × 10 × 10 in