Experience easy mushroom cultivation with Out Grow's Sterilized Grain Spawn Mushroom Substrate Bags. Each bag is hand crafted to offer a unique blend of mushroom substrate and enhanced nutrients. Each bag contains 1 pound of hydrated and sterilized red milo grain spawn, which is equivalent to 1 quart in volume.

The grow bags are equipped with a self-healing injection port, streamlining the inoculation process whether you're using spores or liquid cultures. The built-in filter patch ensures optimal gas exchange, crucial for healthy mycelial growth.

Our spawn bags undergo a rigorous sterilization process, making these sterilized mushroom substrate bags a trustworthy choice for those aiming to cultivate mushrooms without the risk of contamination. For those who have struggled with homemade preparations, our ready-to-use grain spawn bags are a here to make life easier. They negate the need for you to make your own grain spawn at home, freeing you from the tedious task of sterilization and hydration.

But why choose grain spawn over other types of mushroom substrate? One major advantage is the greater number of inoculation points it offers. This translates to faster colonization and, consequently, a faster start to finish time on your grow..

Out Grow's Red Milo grain spawn is best used immediately after purchase for optimal results. These mushroom spawn bags do offer some flexibility in terms of storage. You can store them in a cool, dark location for up to one month before use. This makes them ideal for growers who may not be ready to inoculate immediately.

Switch to Out Grow's Sterilized Grain Spawn Mushroom Substrate Bags for an efficient, high-yield, and hassle-free mushroom cultivation experience. Whether you're a beginner taking your first steps in mycology or an expert looking for a convenient and effective mushroom bag, we've got you covered.