Pearl Oyster Liquid Culture Syringe (10cc)
Pearl Oyster Liquid Culture Syringe (10cc) is backordered and will ship as soon as it is back in stock.
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Description
Description
Pearl Oyster Liquid Culture Syringe (10cc) — Pleurotus ostreatus, first-generation (G1) isolated genetics from Myco Labs. Pearl Oyster is the standard-bearer of the whole oyster family: soft grey-tan caps in overlapping shelves, tender texture, and the mild savory flavor that most people picture when they think "oyster mushroom." If you are growing to eat rather than to look at, this is the one.
- SpeciesP. ostreatus
- Volume10cc
- GeneticsG1 Isolated
- DifficultyBeginner
- Colonization12–14 Days
Why Growers Choose Pearl Oyster
Pearl Oyster is the most widely cultivated oyster in the world, and it earns that on eating quality. The flesh is more tender than Blue Oyster and milder than King Trumpet, which makes it the better choice for sautéing with butter and garlic rather than searing hard. It is what most restaurants mean when they list oyster mushrooms.
It will grow on almost anything cellulose-based — straw, cardboard, coffee grounds — but it performs best on sawdust, producing heavier flushes and thicker caps than it does on straw. If you have hardwood substrate on hand, use it here.
Like Blue Oyster, it fruits on the cool side at 60–70°F, so it runs well in fall and winter. Fruiting takes a bit longer than the fast warm-weather strains, at eighteen to thirty days, but the yield per flush is worth the wait.
What's In the Package
- One 10cc liquid culture syringe, sealed and lab-tested
- 16-gauge 1.5" luer lock needle
- Sterile alcohol prep pad
Pearl Oyster Growing Specifications
| Specification | Details |
|---|---|
| Scientific Name | Pleurotus ostreatus |
| Recommended Substrates | Hardwood sawdust (best), straw, wood chips, cardboard |
| Incubation Temperature | 70–75°F |
| Incubation Humidity | 80–85% |
| Colonization Time | 12–14 days |
| Fruiting Temperature | 60–70°F |
| Fruiting Humidity | 90–93% |
| Time to Harvest | 18–30 days after fruiting conditions begin |
| Fresh Air Exchange | High — oysters need 4–6 air exchanges per hour |
| Syringe Volume | 10cc |
| Storage | Refrigerate at 35–45°F; do not freeze |
How to Use Your Liquid Culture Syringe
- Let the syringe come to room temperature, then shake gently to redistribute the mycelium evenly through the broth.
- Flame-sterilize the needle until it glows orange and let it cool for a few seconds.
- Wipe the injection port on your grain spawn bag or jar with the alcohol prep pad.
- Inject 2–3cc per quart jar, or 3–5cc per 3–5 lb spawn bag. One 10cc syringe inoculates roughly 2–4 containers.
- Incubate at 70–75°F in the dark for twelve to fourteen days, shaking once at roughly 30% colonization.
- Spawn to bulk substrate at roughly 1:3 grain-to-substrate, then drop temperature and introduce fresh air to trigger pinning.
Frequently Asked Questions
What is the difference between Pearl Oyster and Blue Oyster?
Both are Pleurotus ostreatus, but they are different strains. Pearl produces softer grey-tan caps with a more tender texture and milder flavor, while Blue Oyster comes in darker with a blue-grey cast, colonizes faster and holds its shape better in a hot pan. Pearl is the better eating mushroom; Blue is the faster and more contamination-resistant grow.
What is the best substrate for Pearl Oyster?
Hardwood sawdust gives the heaviest flushes and the thickest caps. Pearl Oyster will also fruit on straw, wood chips and cardboard, which makes it useful for low-cost or recycling grows, but the difference in yield between straw and supplemented sawdust is substantial.
How long does Pearl Oyster take to grow?
Twelve to fourteen days to colonize grain at 70–75°F, then eighteen to thirty days to harvest once fruiting conditions begin. That fruiting window is wider than the fast summer strains, so do not panic if pins are slow to appear — Pearl takes its time and then produces heavily.
How should I cook Pearl Oyster mushrooms?
Sauté them. Tear the clusters into strips, get a pan properly hot, and cook in butter with garlic and thyme until the edges crisp. The flesh is tender enough that it does not need the hard sear a King Trumpet stem wants. As with all oysters, cook them through rather than serving rare.
How much liquid culture do I use per bag or jar?
Use 2–3cc per quart grain jar and 3–5cc per 3–5 lb spawn bag. A single 10cc Pearl Oyster syringe will inoculate roughly two to four containers. Adding more than the recommended dose does not speed colonization meaningfully and simply uses up the syringe faster.
Do I need a flow hood or still air box to use liquid culture?
A still air box is strongly recommended and a laminar flow hood is better still. Liquid culture syringes ship sealed and lab-tested, but the moment you pierce an injection port you are exposing your grain to whatever is in the room air. Working in still air with flame-sterilized tools dramatically improves your success rate.
How should I store the syringe before use?
Keep it refrigerated between 35 and 45°F and never freeze it — freezing ruptures the cell walls and kills the culture. Store it in the sealed bag it shipped in, away from strong odors. Bring it back to room temperature and shake gently before injecting.
Packed to Arrive Alive
A liquid culture syringe is living mycelium, and the trip from our Illinois lab to your door is the part of its life you have the least control over. That is why every Myco Labs liquid culture ships inside a foil-lined insulated mailer rather than a plain envelope. The insulation buffers the syringe against summer heat sitting in a delivery truck and against sub-freezing temperatures in winter, so your culture arrives viable in either extreme.
When it arrives: move the syringe to the refrigerator at 35–45°F until you are ready to inoculate. Never freeze it. Bring it back to room temperature and shake gently before use.



