Black pearl oyster Colonised Grain Spawn – 1.5kg approx. (Made to Order)
Fully colonised | Ready to inoculate your substrate of choice | Delivered in Unicorn bags
This is professionally prepared, fully colonised rye grain spawn—ideal for those ready to move into bulk production with sterilised or pasteurised substrate. Whether you’re a home grower or micro-farm operator, this is your starting point for reliable, contamination-free mycelium expansion.
Each bag is made to order using spawn, liquid culture or agar to ensure vigorous, clean growth. Once received, simply break up and mix evenly with your chosen substrate in a clean environment.
- Sterilised grain
- Fully colonised with your chosen species
- Delivered in genuine Unicorn 10T bags with filter patch
Ideal for: Inoculating Hardwood substrate
Dispatch: Made to order, allow 7–14 days for shipping
Storage: Use immediately or refrigerate for up to 10 days. Do not freeze.
weights are appropriate
Starter Guide: Using Colonised Grain Spawn
You’ve received: 1.5kg approx. sterilised grain, fully colonised with live mycelium.
What you need:
- Pasteurised or sterilised bulk substrate (e.g. Masters Mix, Hardwood, CVG)
- Disposable gloves
- 70% isopropyl
- Work in front of a laminar flow hood or inside a still air box
Instructions:
- Start in front of your laminar flow hood or under your still air box.
- Get prepared, put on your gloves, lay everything out and clean everything down with 70% isopropyl.
- Break up the spawn inside the bag: Gently crumble the grain to separate the mycelium evenly.
- Mix with substrate: Pour your colonised grain into your sterile/pasteurised substrate. Use roughly a 1:4 spawn-to-substrate ratio (you can adjust depending on how fast you want colonisation)
- Incubate: Place in a warm, dark environment suitable for your species. Wait until the substrate is fully colonised (usually 7–14 days).
- Fruit: Once fully colonised, cut the bag or initiate fruiting in your tent/chamber by introducing fresh air exchange, light, and high humidity.
Storage tip: Use spawn within 7 days of arrival or refrigerate to pause growth. Do not freeze.
Contamination tip: Always handle in a clean environment. Avoid introducing spawn into non-sterile substrates.
