Ready to start growing mushrooms right at home? Our sterilized grain bag with an injection port is the perfect place to start your mycology journey at home.

  • 100% ORGANIC: Each bag contains 3 pounds of organic millet ensuring only the purest source of grains for your mushroom growing needs.
  • HOW IT WORKS: With the sterilized grain bag, you can easily innoculate your bag with liquid culture (not included) and begin your journey to fruiting mushrooms right at home! Upon receiving your bag, inspect it immediately for contamination even if you don’t plan on using it immediately. After you have injected your bag with spores it is non-refundable.
  • ZERO WASTE PACKAGING: Each bag is packaged in a biodegradable plastic bag and compostable outer packaging. This ensures that nothing goes to waste when you purchase from us!

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Additional information

Weight 3 lbs

8 reviews for Growing Organic Sterilized Grain Bag with Injection Port (3lb.)

  1. Thomas Mastrelli (verified owner)

    Excellent Product! I tried many others but these bags are high quality!

  2. Kim R Blackburn (verified owner)

    I use their brand exclusively, never any contamination problems and very easy to use.

  3. Eric G. (verified owner)

    Works fine-for mushrooms. I had contamination on one of my millet bags though.

  4. Mihai C. (verified owner)

  5. Anonymous (verified owner)

  6. Natalie (verified owner)

    Love this company and won’t change!

  7. Anonymous (verified owner)

    It didn’t work when we tried to inoculate the bag with our spores. We also don’t have a way to sterilize it so we’ll probably have to try agar instead. The spores could’ve been bad as well.

  8. Adam (verified owner)

    Have used 4 of these so far and every one has spoiled and turned blue. Not sure if maybe something in shipping is causing them to be contaminated or what but so far have had 0 success using these.

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