North Spore | Sterilized Grain Bag

Our top-selling sterilized organic grain spawn bag, meticulously crafted by mycologists, aims to optimize the speed and yield of your mushroom cultivation endeavors. Each bag harbors our exclusive blend comprising hydrated, nutrient-rich organic millet and wheat berries. Additionally, these bags feature a self-repairing injection port suitable for spore or culture syringe application, coupled with a 0.2 micron filter patch to safeguard against airborne impurities while facilitating uniform gas exchange. Please note that the injection port's color may vary.

For optimal results, we suggest using 1 lb of colonized grain spawn per every 5 lbs of either manure or hardwood sterile substrate. Moreover, we advise utilizing 2.5-5ccs for every 3 lb injection port bag. For comprehensive guidelines on inoculation and colonization procedures, please refer to the sections below.

Instructions for inoculation

1. Prepare Workspace:

   • Choose a clean, well-lit area for inoculation to minimize contamination risks.
   • Disinfect surfaces and tools with alcohol or a suitable sterilizing agent.

2. Gather Materials:

   • North Spore Sterilized Grain Bag.
   • Mushroom spawn syringe or culture.
   • Sterile gloves.
   • Alcohol wipes or spray.

3. Thaw the Bag (if applicable):

   • If the bag has been frozen, allow it to thaw completely at room temperature.

4. Sterilize Injection Port:

   • Wipe the injection port with alcohol to ensure sterility before inoculation.

5. Prepare Spawn Syringe:

   • Shake the mushroom spawn syringe to distribute spores evenly.

6. Inoculation:

   • Insert the needle of the syringe through the injection port.
   • Inject the desired amount of mushroom spawn into the grain substrate.
   • Withdraw the needle slowly to prevent contamination.

7. Seal the Injection Port:

   • Close the injection port using tape or a sterile sealant to maintain sterility.

8. Incubation:

   • Place the inoculated bag in a warm, dark area conducive to mycelium growth.
   • Monitor regularly for signs of colonization, such as white mycelium spreading through the substrate.

9. Colonization Check:

   • After inoculation, check for successful colonization within 1-2 weeks.
   • Colonization progress varies depending on the mushroom species and environmental conditions.

10. Fruiting Conditions:

    • Once fully colonized, follow specific fruiting instructions for the mushroom species.

11. Harvesting:

    • Harvest mushrooms according to their growth cycle and maturity.

12. Dispose of Used Materials:

    • Properly dispose of any used syringes or other materials to prevent contamination or spread of pathogens.

Why use Millet?

Millet stands out due to its lower endospore load compared to rye and wheat, reducing contamination risks. Its small size provides numerous inoculation points per volume, enhancing spawn efficiency. Millet fosters even and extensive mycelium spread within the substrate. Additionally, its richness in nutrients facilitates rapid mycelial expansion.