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King Oyster SpawnJar™
Produced from Grade A mother spawn. The pinnacle of quality.
All of our spawn production is performed within our ISO Class 5 Cleanroom in-front of an ISO Class 4 Laminar Flow Hood.
The largest species of the Oyster mushroom family with a very thick, meaty stalk
Delicious and super easy to cultivate, King Oyster is said to provide the body with a boatload of nutrients and minerals!
They will flourish on almost anything… dead wood, straw, grass, wheat, rye, rice, corn, bamboo, cotton, hemp, coffee waste…
Read more here.
1 Litre Glass SpawnJar with SFD lid
SteriBag™ packed within our Cleanroom
Containing 650ml (Approx. 500g) of King Oyster Spawn
How to use
We recommend spawning to a sawdust-based substrate for a very large harvest.
See how we produce our sawdust-substrate using oak sawdust logs and wheatbran to produce around 4.5KG of substrate!
1-2 week production time is required on Spawn. Depending on stocks, we may be able to dispatch sooner.
If there is rust on the jar lid don’t worry, it’s very normal and should be expected.
Unfortunately, we cannot ship this product outside of the United Kingdom right now due to some Brexit requirements on live mycelium. Please only order this product if delivery will be within the UK.
Only logged in customers who have purchased this product may leave a review.
Same guarantee for all clean products
Experience a problem with any product? Don’t panic!
Clean products are what we specialise in, it’s our bread and butter – and we’re good at it. We have to be.
Sterile technique is like driving – you can’t learn it by reading, you need to be practising it always.
While most contamination reports are statistically more likely to be down to beginner error, it’s not always the case.
Sometimes it may actually be us. Does that mean we don’t know what we are doing or that we’re rookies at this?
No. And here’s why.
We regularly purchase live gourmet mother spawn from one of, if not the largest, most accredited mycology business in the world.
This company is BIG and they even run week-long training courses in mycology and have the most incredible set up worth a fortune.
Even they make mistakes. We’ve had to get in touch with them a couple of times after receiving contaminated spawn.
The point we’re trying to make here is that even the masters of mycology mess up. Nature is unpredictable and we all make mistakes.
Although we don’t offer refunds on our products, we will send a voucher for it’s replacement.
Irregardless who is at fault.
A second chance on us 🙂
*If we believe this is being abused by anyone, we reserve the right to remove it at any time.
First impression counts
Nosey delivery drivers, flatmates, neighbours or work colleagues?
Your parcel will be sent in high quality, nondescript packaging; our website won’t be mentioned and there’s no tell-tale return address to worry about either.
Even for international orders made from outside of the UK, our customs declarations are barebones with descriptions such as ‘Microscopy Kit’ or ‘Gardening Supplies’, etc… We follow the rules whilst maintaining your privacy.
Ask questions about this product here!
What is the approximate yield in grams I can expect from this spawn?
Q What is the approximate yield in grams I can expect from this spawn? answer nowAsked on 20th February 2021 10:34 amA
Well because it's spawn, you can expand it as much as you you want using grain to grain inoculation. You can also grow direct from this spawn as if it's a substrate and get many hundreds of grams of mushrooms or you can spawn it to a proper substrate choice such as sawdust and grow kilos. Really it's up to you how big you want to go with this spawn :)