King Blue Oyster Liquid Culture Syringe (10cc)
King Blue Oyster Liquid Culture Syringe (10cc) is backordered and will ship as soon as it is back in stock.
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Description
Description
King Blue Oyster Liquid Culture Syringe (10cc) — a hybrid of Blue Oyster and King Oyster, with first-generation (G1) isolated genetics from Myco Labs. It takes the deep blue-grey caps of one parent and the thick, meaty flesh of the other, producing dense clusters that hold up to serious cooking. It also keeps far longer after harvest than any other oyster we carry.
- TypePleurotus hybrid
- Volume10cc
- GeneticsG1 Isolated
- DifficultyBeginner
- Colonization12–16 Days
Why Growers Choose King Blue Oyster
The single best argument for King Blue is shelf life. Most oysters start wilting within a day or two of harvest — Golden Oyster is notorious for it — but King Blue holds for up to ten days under proper refrigeration. If you sell at a market, cook in batches, or simply hate throwing away half a flush, that difference matters more than anything else on this page.
The hybrid also delivers on texture. It inherits enough density from the King Oyster side to sear properly and stand in for meat, while keeping the fast, forgiving growth habit of a standard Blue. That combination makes it popular in Asian cooking, where the firmer flesh survives stir-frying without collapsing.
It fruits cool at 60–70°F like Blue and Pearl Oyster, and it is not fussy about substrate. This is an easy culture that produces a premium result.
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
King Blue Oyster Growing Specifications
| Specification | Details |
|---|---|
| Type | Hybrid of Blue Oyster and King Oyster (Pleurotus) |
| Recommended Substrates | Hardwood sawdust, straw, Master's Mix, wood chips |
| Incubation Temperature | 70–75°F |
| Incubation Humidity | 85–90% |
| Colonization Time | 12–16 days |
| Fruiting Temperature | 60–70°F |
| Fruiting Humidity | 90–93% |
| Time to Harvest | 14–21 days after fruiting conditions begin |
| Fresh Air Exchange | High — oysters need 4–6 air exchanges per hour |
| Shelf Life After Harvest | Up to 10 days refrigerated — exceptional for an oyster |
| 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 sixteen 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 a King Blue Oyster?
It is a hybrid between the classic Blue Oyster and the King Oyster. The result keeps the blue-tinted caps and fast clustering habit of Blue Oyster while gaining noticeably thicker, meatier flesh from the King side. It behaves like a standard oyster in cultivation, so no new technique is needed.
How long do King Blue Oysters keep after harvest?
Up to ten days refrigerated, which is exceptional among oyster mushrooms — most varieties are best used within one to three days. Store them dry in a paper bag rather than sealed plastic, which traps moisture and shortens the window considerably.
What substrate should I use?
Hardwood sawdust or Master's Mix gives the thickest, densest fruits, which is where this hybrid's advantage shows. It also grows readily on straw and wood chips if you want a lower-cost run, though the flesh comes out somewhat thinner.
What temperature does King Blue Oyster need?
Incubate at 70–75°F and fruit at 60–70°F, the same cool range as Blue and Pearl Oyster. That makes it a fall and winter strain in most of the country. If your space runs warm through summer, Pink or Golden Oyster is the better seasonal choice.
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 King Blue 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.
Let customers speak for us
I've been using these jars for years now with a very high success rate. But I've also had good success with their substrates and pretty much everything I've gotten from this store. Thank you Midwest Grow Kits
I buy most of my supplies here when needed and they never disappoint. If I have an issue they are quick to respond and its typically my fault hahaha.
When I saw my first pin, my universe opened up. mind blowing hobby!
Love it. Easy to put together. Holds a lot of jars, trays, bags, totes, ect. I'm going to get another one for fruiting.
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Mycelium shot through the casing layer in 2 days. GtPlat. 2/1
Outstanding materials at the lowest cost I could find. Would not pass up this offer if you're serious about growing
This definitely does the job and it’s an excellent product for the price. It took be about 2 hours to set it up and make all the necessary modifications. The FAN solution that comes with it is at best temporary but it will due the job until you can save up for a better fan.
I plan to make tinctures for the messed up nerves in my arms, and other chronic pain bs. Don't want to support too many opportunistic companies, so I just chose the source and be patient. Holistic care and responsibility is a game of patience and understanding. I appreciate your services! Be well, do good! Try to waste less. Oh, the small black gloves are useless unless you have the hands of a small child.😅
Just stirred it, don't worry🫠 no stir bars or magnets have ever been needed here.
Awesome growth 10 days after inoculation. Very happy! Would recommend this priduct and this company!
Working good. Lights my closet just enough for the environment I need! Thanks!
It's started good. Let's hope it continues to grow so I can break a shake it!
Bought the 3-Pack Premium Quick-Colonizing 5-grain Jar (32oz) and inoculated 9 days ago. Love it! Colonization quick and clean. Highly recommend!
So when i got this i was worried because of past experiences. Leave it up to midwest to be nice a patient with me. The team at bonsai gives great support . This flow hood is meant to run a little higher than normal clean room standards because most people need this working from home . This thing is nice and laminar. Very inform . With a speed contoller i average about .45 m/s across the face. It passed everyone one of my agar grid tests . Which blows my mind becuase i ran it through three diffrent 30 mins agar grid tests . Ive used a few flow hoods and this one is my favorite . Perfect for any home or small buisness.
"Upgraded to the MycoClimate 44Q and the difference in consistency is night and day. The dual-chamber water-bath heating keeps temperatures rock-solid without drying out the substrate like standard heating mats do, and the automated HEPA air pump takes all the stress out of fresh air exchange—even tucked away inside a closet.
