Mycology Now

Got questions? Call us

(505) 375 0655

Fast Shipping

Within 24 Hours

Quality Customer Service

Fast & Friendly

Mycology Now
store rating4.60 / 5
product rating4.86 / 5
414 reviews

Pre-Sterilized Grain Bag with Injectable Port

Elevate your mushroom cultivation with our innovative Pre-Sterilized Grain Bag, designed for enthusiasts and professionals alike. This compact, injectable mushroom filter patch spawn bag measures 4″ x 3″ x 18″, featuring gusseted sides for expanded capacity and crafted from 3.0 mil thick, autoclavable polypropylene plastic for durability and reusability.

Pre-sterilized Grain Bag with Injectable Port

(3 customer reviews)


Small 3.0 mil thick polypropylene plastic spawn bag with a 0.5 µm filter patch at the top and a built-in foam self-healing injection port at the bottom that is filled with 1kg hydrated white proso millet that has been sterilized at 15 PSI for 2 hours.

We Accept

46 in stock

Purchase this product now and earn 25 SporeBucks!

Key Features:

  • Size & Material: At a practical size of 4″ x 3″ x 18″, our bags are made from high-quality, 3.0 mil thick polypropylene, autoclavable for repeated use.
  • Advanced Filtration: Equipped with a 0.5 µm microporous filter patch positioned at the top, it maximizes usable space while ensuring optimal gaseous exchange and contamination prevention.
  • Self-Healing Injection Port: A foam, self-healing injection port is strategically placed towards the bottom, perfect for inoculation with spore or liquid culture syringes of edible varieties.
  • Pre-Sterilized Substrate: Comes loaded with 1kg of hydrated, sterilized white proso millet grain, offering a superior substrate with lower contamination risk and more inoculation points.
  • Ready to Use: Triple-sealed post-sterilization under strict conditions, our grain bags are ready for immediate inoculation with your choice of edible mushrooms, including Oyster, Lion’s Mane, and more.
  • Fast Shipping: Packaged in a USPS Priority Medium Flat Rate box for swift 1-3 day delivery post-shipment.

Why Choose Millet?

Opting for millet means benefiting from a substrate with a lower endospore load than traditional grains, significantly reducing contamination risks. Its small size ensures a higher number of inoculation points, facilitating a more even and robust mycelial spread. As a nutrient-rich medium, it promotes faster mycelial growth, making it the ideal choice for your cultivation needs.


  • Storage: Keep at room temperature away from direct sunlight. Refrigeration not required. Can be frozen for extended storage.
  • Processing Time: All orders are processed within 1 to 2 business days (excluding weekends and holidays) after receiving your order confirmation email.
  • Shipping Days: We ship products Monday – Friday around 12pm. Orders placed over the weekend will be processed on the next business day.
  • Shipping Options:
    USPS Ground Advantage Bubble Mailer (3-5 Business Days) for $25.00
    USPS Priority Mail Bubble Mailer (1-2 Business Days) for $25.00
    USPS Small Flat Rate Box Priority (1-2 Business Days) for $25.00
  • Order Tracking: Once shipped, you’ll receive an email notification with a tracking number. Please allow up to 48 hours for the tracking information to update.
  • Note: Ensure your shipping address is accurate. Mistakes in the shipping address that result in misdelivery will not be replaced.
1-5 of 175 reviews
  1. A
  2. T

    Always good quality research specimens. Had a recent issue with placing an order online and customer service was prompt and helpful.

  3. L

    Thank you

  4. S

    Quick delivery!!! Everything looks good under the microscope. Syringe full of viable cultures.

  5. D

    Excellent customer service, fast shipping!

Weight .03 kg

Dimensions 22 × 12 × 4 cm

You're viewing: Pre-sterilized Grain Bag with Injectable Port $24.95
Add to cart
What Our Clients Say
414 reviews