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  • First-generation (G1) Ganoderma lucidum isolate, the glossy red, gill-less Reishi
  • Colonizes grain in 18–21 days at 70–80°F
  • Fruits at 65–75°F and 90–93% humidity; harvest 25–35 days after fruiting conditions start
  • Air controls the shape: sealed bags grow antlers, vented bags grow flat conks
  • Includes a 16G 1.5" Luer Lock needle and alcohol prep pad; ships insulated
Retail: $19.99
Price: $12.50
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    Item #: RDR10
    Availability: In Stock
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    Our Red Reishi is a first-generation Ganoderma lucidum isolate, the glossy, deep-red bracket fungus with no gills underneath. It's slow and deliberate, and it's the one species where you choose the final shape: flat lacquered conks or branching antlers, depending on how much air you give it.

    • G. lucidumSpecies
    • G1Isolated genetics
    • 18–21 daysColonization
    • 65–75°FFruiting temp
    • IntermediateDifficulty

    Why grow our Red Reishi culture

    You pick the form

    Keep the bag sealed and it grows antlers. Vent it and the same culture flattens into the classic red conk.

    Grows in stages

    A white knuckle first, then a stem, then a soft white edge that hardens into a glossy red cap. Each stage is easy to read.

    Built for drying

    Too woody to cook. It's grown to slice, dry and simmer, and pairs well with Turkey Tail for growers stocking dried mushrooms.

    Inoculating with liquid culture

    1Warm and shake

    Let the syringe reach room temperature, then shake it gently to break up and spread the mycelium through the broth.

    2Sterilize

    Flame the needle until it glows, let it cool a few seconds, and wipe the injection port with the included alcohol pad.

    3Inject

    Use 2–3cc per quart jar or 3–5cc per 3–5 lb grain bag. One 10cc syringe inoculates about 2–4 containers.

    4Incubate

    Keep it at 70–80°F in the dark. Shake once at about 30% colonization to speed things up.

    Budget about two months: grain takes up to three weeks and fruiting another three to five. Expect a long white-knuckle stage before any red shows up. That's normal.

    Red Reishi growing parameters

    SpecDetail
    Scientific nameGanoderma lucidum
    GeneticsFirst-generation (G1) isolated culture
    Recommended substratesSupplemented hardwood sawdust, hardwood logs; rye berries for spawn
    Incubation temperature70–80°F
    Incubation humidity85–90%
    Colonization time18–21 days on grain
    Fruiting temperature65–75°F
    Fruiting humidity90–93%
    Time to harvest25–35 days after fruiting conditions start
    Fresh air exchangeSets the shape: low gives antlers, high gives flat conks
    In the package10cc syringe, 16G 1.5" Luer Lock needle, alcohol prep pad
    StorageRefrigerate at 35–45°F; never freeze

    From our lab to your grainRun it into jars with wide-mouth cultivation lids or your own lids with self-healing injection ports. Spare 16G needles and sterile Luer Lock syringes are sold separately.

    Frequently asked questions

    How much liquid culture do I use per jar or bag?

    Use 2–3cc per quart grain jar and 3–5cc per 3–5 lb spawn bag. One 10cc Red Reishi syringe inoculates roughly two to four containers. Using more doesn't speed colonization much; it just uses up the syringe.

    How long does Red Reishi take to colonize grain?

    18–21 days at 70–80°F, then 25–35 days of fruiting. Plan on roughly two months from injection to harvest.

    What's the best substrate for Red Reishi?

    Supplemented hardwood sawdust for indoor blocks, or hardwood logs outdoors if you're willing to wait a season. Rye berries make good spawn. Reishi won't perform on straw or manure.

    Why is my Reishi growing antlers instead of a flat cap?

    Carbon dioxide. In a sealed or stale bag, Reishi stretches into branching antlers. Add fresh air and the growing tips flatten into a conk. Many growers restrict air on purpose for antlers, so treat it as a setting, not a problem.

    How should I store the syringe?

    Refrigerate it at 35–45°F in the bag it shipped in and never freeze it; freezing ruptures the cells and kills the culture. Bring it to room temperature and shake gently before you inject.

    Why liquid culture instead of a spore syringe?

    Liquid culture is living mycelium from an isolated culture, so it skips germination, colonizes days faster and gives genetically consistent fruits. Spores have to germinate and pair up first, which is slower and more variable from grow to grow.

    Packed to arrive alive

    Liquid culture is living mycelium, so every syringe leaves our lab in a foil-lined insulated mailer. The insulation buffers it against summer heat in a delivery truck and against sub-freezing winter temperatures, so it arrives viable either way.

    Myco Labs liquid culture syringe packed in a foil-lined insulated mailer

    When it arrives: refrigerate the syringe at 35–45°F until you're ready to inoculate. Never freeze it. Bring it to room temperature and shake gently before use.

    Sold as a mycological culture for cultivation. Red Reishi is the subject of ongoing scientific research, but nothing on this page is intended to diagnose, treat, cure or prevent any disease.

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