Sterilized substrate bags. Use these bags to grow mushrooms at home! All you need is fully colonized mushroom spawn to mix it in with this substrate bag. After the spawn colonizes your substrate bag, it will be ready for fruiting conditions!
 
Choose between:
Masters Mix (soy hulls + hardwood pellets).
Supplemented hardwood (hardwood pellets + gypsum + wheat bran).
Upaia Mix (secret home-grown recipe!).
 
Product Includes:
4 x 5lbs. sterilized substrate bags.