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  • 10cc Pleurotus citrinopileatus liquid culture, first-generation (G1) isolate
  • Quickest colonizer we keep: about 11 days on grain
  • Warm-weather strain that fruits at 71–78°F in bright yellow clusters
  • Grows on straw, hardwood sawdust and coffee grounds
  • 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 #: GLD10
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    Our Golden Oyster is a first-generation Pleurotus citrinopileatus isolate, known as tamogitake in Japan. It forms tight bouquets of brilliant yellow, fan-shaped caps and is the quickest colonizer in the Myco Labs library, going from injection to harvest in about a month.

    • P. citrinopileatusSpecies
    • G1Isolated genetics
    • ~11 daysColonization
    • 71–78°FFruiting temp
    • BeginnerDifficulty

    Why grow our Golden Oyster culture

    Fastest on grain

    About eleven days to colonize, the quickest turnaround we have. Good for classes, market tests or proving your technique.

    Summer strain

    It fruits best at 71–78°F, alongside Pink Oyster, and slows down badly in a cool room.

    Showpiece clusters

    Bright yellow bouquets that photograph well and cook up nutty, almost cashew-like.

    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 78–81°F in the dark. Shake once at about 30% colonization to speed things up.

    Cook it through and use it fast: Golden Oysters bruise and wilt quicker than any other oyster, so eat them within a day or two. Always cook them thoroughly; undercooked oysters upset some people's stomachs.

    Golden Oyster growing parameters

    SpecDetail
    Scientific namePleurotus citrinopileatus
    GeneticsFirst-generation (G1) isolated culture
    Recommended substratesStraw, hardwood sawdust, spent coffee grounds, cellulose-rich materials
    Incubation temperature78–81°F
    Incubation humidity80–83%
    Colonization timeAbout 11 days on grain
    Fruiting temperature71–78°F
    Fruiting humidity90–93%
    Time to harvestAbout 14 days after fruiting conditions start
    Fresh air exchangeHigh, 4–6 exchanges per hour
    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 Golden Oyster syringe inoculates roughly two to four containers. Using more doesn't speed colonization much; it just uses up the syringe.

    How long does Golden Oyster take to colonize grain?

    About 11 days at 78–81°F, with fruiting about 14 days later. The full cycle from injection to harvest is around a month.

    What's the best substrate for Golden Oyster?

    Pasteurized straw or hardwood sawdust, and it also takes to spent coffee grounds and other cellulose-rich materials.

    Why is my Golden Oyster growing slowly?

    It's almost always too cold. Golden Oyster is subtropical; keep incubation at 78–81°F and fruiting at 71–78°F. In a cool room, run Blue or Pearl Oyster instead.

    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.

    Overall Customer Rating of 1 Reviews:
    review-star review-star review-star review-star review-star

    Worked Great!

    Rating:
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    Well packaged and shipped fast! I am new to mushroom growing, this variety was fun and easy to grow!! I'm excited to try some of the other varieties that Myco Labs offers.

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