King Trumpet Oyster Liquid Culture Syringe (10cc)
King Trumpet 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 Trumpet Oyster Liquid Culture Syringe (10cc) — Pleurotus eryngii, first-generation (G1) isolated genetics from Myco Labs. King Trumpet is the largest oyster species and the only one where the stem, not the cap, is the prize. Individual fruits can exceed two pounds, with a dense white stem and a small tan cap on top.
- SpeciesP. eryngii
- Volume10cc
- GeneticsG1 Isolated
- DifficultyIntermediate
- Colonization~12 Days
Why Growers Choose King Trumpet
Every other oyster is grown for its caps. King Trumpet is grown for the stem — a thick, dense column of white flesh with a texture close to scallop or abalone, which is why it is the default mushroom on serious vegetarian menus. Sliced into rounds and seared hard, it holds its shape and browns like a piece of meat.
It is also the oyster that most rewards good airflow. Fresh air exchange is not a nice-to-have here: in high CO2 the stems stretch tall and thin while the caps stay tiny, giving you a bag of pale drumsticks instead of the squat, heavy fruits you want. Ventilate properly and the same culture produces short, fat trumpets.
Fruiting is slower and less predictable than other oysters — anywhere from eighteen to forty-four days — and it prefers cooler conditions at 55 to 69°F. That makes it a good autumn and winter counterpart to Pink and Golden Oyster.
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 Trumpet Growing Specifications
| Specification | Details |
|---|---|
| Scientific Name | Pleurotus eryngii |
| Also Known As | King Oyster, French Horn, trumpet royale |
| Appearance | Tall thick white stem with a small tan or beige cap |
| Recommended Substrates | Supplemented hardwood sawdust, Master's Mix, straw |
| Incubation Temperature | 68–72°F |
| Incubation Humidity | 80–85% |
| Colonization Time | ~12 days |
| Fruiting Temperature | 55–69°F |
| Fruiting Humidity | 90–93% |
| Time to Harvest | 18–44 days after fruiting conditions begin |
| Fresh Air Exchange | Critical — high CO2 elongates stems and shrinks caps |
| 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 68–72°F in the dark for about twelve days, shaking once at roughly 30% colonization.
- Spawn to supplemented hardwood sawdust or Master's Mix, drop to 55–69°F, and give it heavy fresh air exchange throughout fruiting.
Frequently Asked Questions
Why are my King Trumpets tall and thin with tiny caps?
Carbon dioxide. This species is more CO2-sensitive than any other oyster, and in stale air the stems elongate while cap development stalls, producing pale, spindly fruits. Increase fresh air exchange substantially — more than you would use for Blue or Pearl Oyster — and you will get the short, thick, heavy trumpets the species is known for.
How big do King Trumpet mushrooms get?
They are the largest oyster species, and a single well-grown fruit can exceed two pounds. Most home grows produce fruits in the quarter to half pound range, which is still substantially bigger than any other oyster. Size depends heavily on substrate nutrition and airflow rather than on time alone.
What does King Trumpet taste like?
Mild and savory rather than strongly mushroomy, with a firm, dense texture in the stem that is often compared to scallop or abalone. Slice the stem into thick rounds, score them, and sear hard in a dry pan before adding fat. It is the most convincing meat substitute among cultivated mushrooms.
How long does King Trumpet take to fruit?
Colonization is quick at around twelve days, but fruiting varies widely — anywhere from eighteen to forty-four days. This species is less predictable than other oysters and rewards patience. Keeping temperatures in the 55–69°F range and airflow high gives the most consistent timing.
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 Trumpet 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.
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Let customers speak for us
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.
i saw germination in my jar within 2-4 days!! I ordered a 3 pack and i injected 3 different strains and they are all colonizing and germinating very rapidly i see ne difference in rate of germination for genetics they are all moving about the same speed im happy with my purchase!
100% RELIABLE EVERY TIME I LOVE YOU MIDWEST THANL YOU TEAM
Reliable and I know what I am getting. Pretty quick colonization.
I got the grow bag instead of jars this time because I am not interested in the steps of the jars.
Been there done that.
I am not an expert🤓 but now I have enough knowledge and experience to call myself an apprentice.
The thrill of the process is gone. Just give me the dam mushrooms.
I am hurry up and waiting😉.
Seems to be working is all I have to say at this point day 7. The green is reflection not mold.
All I knew was I wanted to grow some mushies for me and the boys, I did a bunch of research on companies and you guys have been around the longest and have the best reviews for these types and I was not disappointed. Took exactly 8 weeks to harvest my first 4 ounces and more on the way! Thanks so much for all the awesome guides and videos! Made it so easy!
It's a great monotub kit. I recommend throwing the horse booster, used the whole bag to 4 small quick grain jars and the 7.5 mix. I learned how to do a pf tek with these guys 10 years ago when you still got the sticky light for the lid and the monotub was a blue tub with polyfill. These monotub kits have come a very long way since then. Substrate has always been clean and performed better than what I try to recreate with a pressure cooker.
10cc liquid culture and follow the instructions mgk gives you hard to mess up.
So far , I only have a little bit on agar , and am only beginning to study this mycelium. Super excited to try to put it to use in this Aspen tree.
Everything is looking real good so far
If your ever in need of replacing your hepa filter on your bonsai flowhood these are an exact match to whichever size you have. Worth noting that a filter will actually work a lot longer than is recommended due to physics but if your externals get dirty or damaged it’s worth replacing.
Shipping was lightning fast
