Sterilised Popcorn Grain

Our Drippy Corn, sterilised popcorn grain spawn, is a reliable, fast-colonising option made from high-quality whole kernel popcorn, fully hydrated and sterilised for ease of use. If your liquid culture has been pre-conditioned with either fructose or glucose, you'll notice a shorter lag phase as the mycelium adjusts, acclimatises, and begins colonisation.

What makes popcorn stand out is its larger kernel size and naturally airy structure. This gives the mycelium more room to breathe, spread, and colonise rapidly. It also breaks up easily when shaken, making it ideal for grain-to-grain transfers and promoting even faster expansion across your substrate.

Corn is naturally rich in starches and amino acids, providing the energy and nutrients mycelium needs to thrive.

* Our popcorn grain is sterilised at 15 PSI for 3 hours.

How do I use this Popcorn Grain?

Inject your mushroom spore syringe into the Popcorn Grain via your self-healing port and let the mycelium do its thing. Once the magical mycelium has colonised the Popcorn Grain and it is all white, then you can mix it in with your substrate.

Of course this is all assuming that you want to grow mushrooms but you could also… fill a balloon with your grain and use it as an eco-friendly stress ball or half-fill a container with your grain and use it as some homemade maracas.. But whatever you do, for the love of God - do not use your popcorn grain to be growing magic mushrooms !!

How long does this Popcorn Grain last?

Popcorn Grain will last approximately 6-12 months in a cool, dark environment. We recommended to store it in a sealed container ensuring that it is suitably protected from pests.

• A bag of Sterilised Popcorn Grain complete with self-healing injection port and filter (depending on your selected size)
• 1 x Sterile Sealed Syringe Needle
• 1 x Sterile Wipe

Popcorn Grain takes 24 hours to prepare so orders completed before noon (on a UK working day) will be dispatched on the next working day, i.e. Mon-Fri & non-holidays (UK). Orders made after noon (again on a UK working day) will be dispatched the day after the next working day. Please allow 2-3 days delivery time from dispatch. Outside the UK, times can vary greatly - so it is better to order well in advance.

Any confusion then please contact us for clarification.

We only accept returns on unopened items. However if you have received a damaged or defective product, then please contact us and we'll be sure to put things right. See our full refund policy.