Product Description
This CVG (Coir, Vermiculite, and Gypsum) mixture is prepared to field capacity and available in various sizes for immediate use. Coir and vermiculite contribute to water retention and aeration, while the gypsum acts as a pH buffer and provides structural support for mycelial growth. It's already sterilised and suitable for using with your colonised grain spawn, perfect for anyone starting out on their mycological journey.
For tub cultivation, a substrate depth of 3–4 inches is recommended to maintain consistent growth conditions. If cultivating a species prone to blobbing or stalling, a higher substrate to grain spawn ratio may support more stable development.
* Our cvg bulk substrate is sterilised at 15 PSI for 3 hours.
Our Expert's Opinion NEW
Tony, our resident mycologist, has this to say.
Product FAQs
- How do I use this item?
- Mix it with a fully colonised mushroom media. We recommend at least an inch covering on top.
- Do I need to add any water?
- No - this substrate is already hydrated to field capacity. Field capacity relates to the relative moisture content of the soil required for the mushrooms fruiting bodies to harvest.
What Will I receive?
When will I receive my CVG Bulk Substrate?
CVG Bulk Substrate 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.
Can I return my CVG Bulk Substrate?
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.
