CVG Bulk Substrate

In stock
£19.99
  • Field Capacity
  • Higher yields
  • Ready to Use

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.

* All of our CVG substrate is sterilised at 15 PSI for 3 hours.

Our Expert's Opinion NEW

Tony, our resident mycologist, has this to say.

Pros
  • Beginner Friendly - A balanced mix that's ready to use.
  • Water Retention - Coir and vermiculate are both highly proficient at absorbing and therefore retaining moisture - keeping the mix hydrated.
  • Lower Contamination Risk - Both coir and vermiculite don't contain nutrients like proteins and sugars which contaminants consume.
Cons
  • Lower Nutrient Content - Some other substrates provide higher nutrients.
Tips
  • Encourage Even Growth - Ensure that the surface is level so that the mycelium colonises evenly.
  • Maximise Yield - If using a tub then press down on the sides of the substrate in the tub - this will reduce side pins (mushrooms growing at the sides).

Product FAQs

How long does CVG Bulk Substrate last?
CVG Bulk Substrate will last approximately 3 months in a cool environment. We recommended to store it in the freezer and take it out a day before use.
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.
How do I use this item?
Mix it with a fully colonised mushroom media. We recommend at least an inch covering on top.

What Will I receive?

  • A bag of CVG Bulk Substrate

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.