Organic CVG Substrate For Fruiting Exotic Mushrooms & Therapeutic Species

The substrate your parents warned you about!

Our hand-made CVG substrate contains organic coir and premium vermiculite, dusted with a little bit of gypsum, then mixed with water until floofy and homogenous. Why? Because it’s a tried and tested product that people have been using to grow mushrooms in the UK and abroad for years!

It’s all about the science, really. The coir provides an almost nutrient-free method of increasing the available moisture content; mushrooms are around 90-95% water content (just like a nice beer should be) so if you want chonkers then you’ve gotta make sure you’re giving them the juice. The vermiculite also helps with the water retention, and also looks fabulous because it’s got gold sparkly bits in. The gypsum buffers the pH a little, and also provides a few extra little nutrients just to make sure that your mushrooms have the peak environment to grow in. Finally we hydrate the whole shebang with just the right percentage of water (that’s the whole “field capacity” bit), and that’s it: an amazing substrate for your mushrooms, ready to go, without you having to muck about and get your kitchen all dirty!

✅ Loved by exotic fungi/therapeutic fungi/cool people

✅ Ready to go out of the bag if you really must

✅ Also ready to be put in a monotub so you can have more surface area

✅ Pasteurised for 24hrs

✅ Perfectly hydrated to field capacity

✅ Gypsum to buffer the ol’ pH

✅ Organic, so there’s nothing nasty in there for your mushrooms to accidentally eat

How to use:

• Don’t you dare use this to grow magic mushrooms, you beast. Unless you live somewhere that it’s legal to do that, in which case yeah this’ll work really well, have fun you lucky bastards.
• Mix well with fully colonised grain spawn - make sure your area is clean, you are clean, and your equipment is clean, please!
• Allow substrate to fully colonise before you go fruiting it, unless you likeoderma the Trichoderma. “When is it fully colonised”, you ask? You’ll be able to tell from looking through the tub, it should look like Ron Jeremy’s gone mental in there.
• Fruiting starts when your sub gets fresh humid air and a quick glimpse of the light. If it’s in a tub, just open the lid for a second or two (or just leave it slightly ajar once it’s colonised). If you’re going straight from the bag (depending on what kind of mushrooms you’re growing and what size bag you bought), you might want a humidity tent so that your mushrooms have got room to thrive and putting that on would’ve been enough.

Depending on what size you go for, you could either fruit in the bag or the tub (2kg has enough space so it’s up to you, the 3kg needs to go in a tub) but if you do decide to whack it all in a tub, make sure you get the right sized one for your grain/substrate combo - a useful general rule of thumb is that you want it to be around 3-5 inches deep so that you’ve got enough surface area to grow sick canopies, but also enough depth to maintain a good amount of moisture for your future flushes of decent home-grown mushrooms.

If you wanted to go for a fully-organic grow, you could pair this up with some of our Organic Rye - it’s good for the planet and it’s a lovely bit of grain even if we do say so ourselves!

Storage:

• Shelf stable for 2 months, or for infinity months in the freezer like that box of fish fingers that’s in there*
• Do try and use it sooner rather than later though as moisture will evaporate and it’s at its best when it gets to you
• Store in a cool dark place, like it was a Nosferatu or something
• In fact that’s it exactly, treat it like a vampire, cool and dark, no fire, doesn’t like bright sunshine, also keep it away from garlic and crosses just in case

*Probably not actually infinity, but 6 months is fine and is almost as long

Wanna make your own?

We also sell coir, vermiculite, and gypsum. You’ll want a nice bag to put it all in, we use the XLS-A for our 2kg CVG, and the 3B for the 3kg CVG.