Sterilized Rye Berry Mushroom Substrate Jars 4 Pack Grain Spawn Jars Out-Grow

  

Out-grow presents our premium sterilized rye berry substrate jars, perfect for mushroom cultivation. Each set includes four quart-sized grain spawn jars, filled with perfectly hydrated and sterilized rye berry substrate. These rye berry substrate jars come ready to use, fully sterilized and hydrated.

Simply inject 2-4 cc of your preferred mushroom spore solution or liquid culture (not included) and distribute with a gentle shake. The jars are versatile - use them as grain masters, for grain-to-grain transfers, or spawn to bulk substrate. Premium sterilized rye berry substrate. This item is made of premium rye berries, natural spring water and agricultural gypsum.