Product Description
To successfully grow mushrooms in your bag or tubs, we recommend a minimum 3:1 ratio of Coir & Vermiculite substrate to Rye Grain Spawn. This combination ensures that once fully colonised, the grain spawn will provide all the necessary nutrients, while the substrate effectively retains the moisture required for fruiting.
Our grain spawn is fully hydrated and nutrient-rich, and the coco coir and vermiculite are prepared to field capacity. Both products are sterilised in a vertical steam pressure autoclave for 3 hours at 15 PSI. The ratio of spawn to bulk can be increased if the mushroom is prone to blobbing. This hassle-free recipe offers a ready-made solution for your mushroom growing needs.
Want more information? Take a look at our blog article on grains and substrates
Product FAQs
- How long does this substrate last?
- This 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.
- What does Field Capacity mean?
- 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 is autoclavable?
- Able to withstand the action of an autoclave.
- What is an autoclave?
- Autoclaves operate at high temperature and pressure in order to kill microorganisms and spores. They are used to decontaminate certain biological waste and sterilise media, instruments and lab ware.
- Why is an autoclave important?
- To grow mushrooms effectively conditions must be sterile ensuring that there isn't any contamination.
What Will I receive?
When will I receive my item?
Mushroom 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 Mushroom 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.
