cvg

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>>> # __ CVG Recipe__

Consisting of coco coir, vermiculite and gypsum and generally considered non-nutritious, CVG is an easily prepped bulk substrate which doesn't require a pressure cooker (although you can pasteurise or sterilise if you prefer). You don't even need the vermiculite or gypsum, 100% coco coir will do the job as well.

**Coco Coir**: Derived from the fibrous husk of coconuts, coco coir is an organic, sustainable medium known for its excellent water retention and aeration properties. Often sold in compressed blocks of 650g or 5kg.

**Vermiculite**: A natural mineral that expands with heat, vermiculite is included for its ability to aerate the substrate and hold moisture.

**Gypsum**: Chemically known as calcium sulfate, gypsum is added to the mix to improve substrate structure, prevent clumping, acts as a pH buffer and provides some trace minerals.

### __Ingredients/Equipment__

* 650g Coco coir (the smaller bricks are around 650g but weigh it and adjust the recipe accordingly unless you like coir soup)
* Vermiculite (fine or medium, doesn't really matter)
* Gypsum (calcium sulfate)
* Large bucket with lid (25l homebrew buckets work well)

### __Process__

* Break up the coco coir block (they split easily along the grain), put in the large bucket, add the boiling water, put on the lid and leave to soak for 30mins.
* Add the vermiculite and gypsum and mix thoroughly, replace lid and leave for 30 mins.
* Test the field capacity by taking a handful of the substrate and squeezing, a small trickle of water should come out.
* Replace lid and allow to cool. Best used asap, mix with your spawn at the desired ratio.

### __Modifications__

Using an insulated bucket or wrapping one in an old duvet, sleeping bag or similar to retain the heat for longer. This is not true pasteurisation or sterilisation but 'cooked' coir seems to be preferred by the mushrooms and it will kill off some nasties that may have landed on your coir.
Raw JSON
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  "created_at": "2024-08-23T12:56:23.000Z",
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  "uses": 20,
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  "content": ">>> # __ CVG Recipe__\n\nConsisting of coco coir, vermiculite and gypsum and generally considered non-nutritious, CVG is an easily prepped bulk substrate which doesn't require a pressure cooker (although you can pasteurise or sterilise if you prefer). You don't even need the vermiculite or gypsum, 100% coco coir will do the job as well.\n\n**Coco Coir**: Derived from the fibrous husk of coconuts, coco coir is an organic, sustainable medium known for its excellent water retention and aeration properties. Often sold in compressed blocks of 650g or 5kg.\n\n**Vermiculite**: A natural mineral that expands with heat, vermiculite is included for its ability to aerate the substrate and hold moisture.\n\n**Gypsum**: Chemically known as calcium sulfate, gypsum is added to the mix to improve substrate structure, prevent clumping, acts as a pH buffer and provides some trace minerals.\n\n### __Ingredients/Equipment__\n\n* 650g Coco coir (the smaller bricks are around 650g but weigh it and adjust the recipe accordingly unless you like coir soup)\n* Vermiculite (fine or medium, doesn't really matter)\n* Gypsum (calcium sulfate)\n* Large bucket with lid (25l homebrew buckets work well)\n\n### __Process__\n\n* Break up the coco coir block (they split easily along the grain), put in the large bucket, add the boiling water, put on the lid and leave to soak for 30mins.\n* Add the vermiculite and gypsum and mix thoroughly, replace lid and leave for 30 mins.\n* Test the field capacity by taking a handful of the substrate and squeezing, a small trickle of water should come out.\n* Replace lid and allow to cool. Best used asap, mix with your spawn at the desired ratio.\n\n### __Modifications__\n\nUsing an insulated bucket or wrapping one in an old duvet, sleeping bag or similar to retain the heat for longer. This is not true pasteurisation or sterilisation but 'cooked' coir seems to be preferred by the mushrooms and it will kill off some nasties that may have landed on your coir.",
  "embed": "{}",
  "last_fetched": "2026-10-20T19:43:40.124Z"
}