2KG Sterile Rye Grain Spawn - Large Scale Growing | Premium Mushroom Substrate UK
2KG Sterile Rye Grain Spawn - Large Scale Growing | Premium Mushroom Substrate UK
- Large Scale Growing | Perfect for serious cultivators scaling up production
- Maximum Coverage | Spawns 6-12KG of substrate for multiple projects
- Professional Quality | Laboratory tested for consistent, contamination-free results
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Large Scale Growing. Professional Results.
Our 2KG size is perfect for serious cultivators ready to scale up their mushroom production. Laboratory sterilised and ready to inoculate - ideal for multiple species projects or larger substrate batches.
Maximum Substrate Coverage
This 2KG portion provides sufficient spawn to inoculate 6-12KG of substrate, depending on your mushroom species and desired colonisation speed. Perfect for filling multiple growing containers or commercial-scale operations.
Ready for Scale
Whether you're cultivating gourmet, exotic, or medicinal mushrooms, simply add your chosen spore or liquid culture syringe. Once fully colonised (7-21 days), mix with your preferred bulk substrate for optimal yields.
Quality Assurance
Each 2KG bag undergoes rigorous pressure sterilisation and quality testing. Our grain maintains optimal moisture content and nutritional profile for rapid mycelial growth - consistently contamination-free results.
Technical Specifications
- Weight: 2kg
- Grain type: Organic rye berries
- Self-healing injection port: Yes
- 0.22μm filter patch: Yes
- Substrate coverage: 6-12kg potential
- Storage: 4 weeks ambient, longer refrigerated
- Sterility guarantee: Laboratory tested
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Easy Payment Options
Easy Payment Options
We accept all major credit and debit cards and cryptocurrency payments.
For cash or crypto on delivery, please email us first to arrange details before placing your order: support@williamscosupplies.com
All transactions are processed securely.
Fast & Discreet Delivery
Fast & Discreet Delivery
FREE delivery on orders over £30.
Your order will be sent with Royal Mail or Parcelforce, you will receive
an email once your order has been dispatched.
Orders are dispatched within 3
working days unless stated otherwise.
Plain packaging.
30 Day Grow Guarantee
30 Day Grow Guarantee
We offer a 30 Day Money Back / Replacement Guarantee on all of our products.
To claim your replacement or refund please send us photos of the issue to: support [at] williamscosupplies.com and we will do our best to help you.
Growing Guidelines
Growing Guidelines
Legal Disclaimer
All products sold by Williams Co Supplies are intended for lawful uses only. Our mushroom cultivation supplies are designed for growing gourmet and medicinal mushroom species.
We explicitly prohibit the use of our products for cultivating psilocybin-containing mushrooms or any other controlled substances. Cultivation of psilocybin mushrooms (magic mushrooms) is illegal in the United Kingdom and most other jurisdictions, with severe legal penalties for violation.
By purchasing our products, you acknowledge this disclaimer and confirm that you will use these items solely for legal mushroom cultivation purposes. Williams Co Supplies accepts no responsibility for misuse of our products contrary to applicable laws and regulations.
If you have questions regarding which mushroom species may be legally cultivated, please consult appropriate legal resources or authorities before proceeding.
