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    Flying Mushroom

    All-in-One Mushroom Grow Bag - 5 lb

    All-in-One Mushroom Grow Bag - 5 lb

    $22.00 USD
    $22.00 USD
    Sale Sold out

    All-in-One Grow Bag — Grain & Substrate in One Bag

    The simplest way to grow mushrooms from liquid culture. Sterilized grain and pasteurized substrate are pre-loaded into a single bag with a self-healing injection port — just inject your LC, wait for colonization, and fruit from the same bag. No mixing, no transferring, no extra containers. The 5 lb size (2 lb grain + 3 lb substrate) is perfect for first-time growers or small-batch experiments.

    Specifications

    • Contents: 2 lb sterilized grain + 3 lb pasteurized substrate
    • Total weight: 5 lb
    • Filter: 0.5 micron filter patch for gas exchange
    • Injection port: Self-healing silicone injection port

    How to Use

    • Sanitize the injection port and your syringe needle with alcohol.
    • Inject liquid culture through the self-healing port.
    • Incubate at species-appropriate temperature until grain is fully colonized (2-4 weeks).
    • Once colonized, mix grain into substrate layer inside the bag and introduce fruiting conditions.

    Storage

    Store at room temperature (65-75°F) in a clean, dry place. Use within 30 days of receipt for best results. Do not refrigerate. Inspect bag for punctures before use.

    Quality & COA

    Each bag is sterilized and sealed under clean conditions. Representative bags are tested for contamination before release.

    How to Use This All-in-One Grow Bag

    1. Sterilize the injection port with an alcohol prep pad.
    2. Inject 1-2cc of liquid culture through the self-healing injection port, aiming for the grain layer.
    3. Incubate at 70-75°F until the grain layer is fully colonized with white mycelium (2-4 weeks).
    4. Mix the colonized grain into the substrate layer by gently massaging and kneading the bag.
    5. Wait for full colonization — the entire bag should be covered in white mycelium.
    6. Introduce fruiting conditions — open the bag, mist daily, and provide fresh air exchange.

    Tip: The all-in-one bag is designed to simplify the growing process — grain and substrate are in the same bag, reducing contamination risk and transfer steps.

    What's in the Box

    • 1x all-in-one grow bag (grain + substrate layers)
    • Self-healing injection port
    • Filter patch for gas exchange

    Shipping & Storage

    All orders ship within 1-2 business days from our Colorado facility. Liquid cultures ship in insulated packaging to maintain viability. Store LC syringes in the refrigerator (35-45°F) until use. Grain spawn and substrate bags should be used within 2 weeks of delivery for best results. Ready-to-fruit blocks can be stored at room temperature for up to 2 weeks.

    Our Clean-or-Replace Guarantee

    Every liquid culture is test-inoculated on agar before release to verify purity and viability. If your culture arrives contaminated or fails to colonize, contact us within 14 days with a photo and we'll send a free replacement. No return required.

    New to Mushroom Growing?

    If this is your first grow, we recommend starting with a All-in-One Grow Bag or a Ready-to-Fruit Block — both are designed for beginners and require minimal equipment. For liquid culture use, you'll also need a grain spawn bag and a substrate bag. Check out our growing guides for step-by-step instructions.

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