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CVG Sterile Mushroom Substrate

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Regular price $25.99 USD
Regular price $29.99 USD Sale price $25.99 USD
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Enjoy an easy mushroom growing process from inoculation to the fruiting stage with our nutrient-rich CVG mushroom substrate. The ultimate mix of coco coir, vermiculite, and gypsum, fully sterilized and sealed for minimal contamination risks. Combine each bag with 2 of our mushroom spawn bags and you’ll have all the tools you need to grow a bountiful harvest.

  • Fully sealed and sterile mushroom substrate
  • Self-healing injection port bags for minimal contamination risk
  • Perfectly hydrated and ready to use in a mono-tub
  • Balance of nutrients like nitrogen, phosphorus, potassium, and plenty others, optimized for mushroom fruiting
  • Sold in 5-pound bags

Why Use Our CVG Substrate?

When it comes to mushroom growing, the type of substrate you use can help your mushrooms grow with no delays or, quite the opposite, render your culture inedible.

Get started right away

All nutrients your mushrooms need, ready-packed in a 5-pound bag. We use only the highest quality coco coir, vermiculite, and gypsum, so your mushrooms can get the best nutrition and yield fruit in large numbers.

Minimal contamination risk

Each bag contains fully sterile bulk substrate sealed inside a durable bag. Each bag is also equipped with a self-healing injection port for easy, safe inoculation. You'll face minimal risks at every stage of mushroom cultivation.

Grow a wide variety of mushrooms

CVG substrate is popular for growing mushroom varieties like Psilocybe Cubensis and Psilocybe Semilanceata, but its nutrient-rich composition works great for lots of common types like the button mushroom or portabello. Always check your local regulations to learn about what you can and can’t grow. 


With our CVG sterile mushroom substrate sterilised bags, you can enjoy growing large quantities of magical and delicious mushroom species without worrying about nasty contaminations or abnormal growths. We provide step-by-step instructions so you can grow bountiful, high-quality mushrooms no matter if you're a beginner or an experienced mushroom hobbyist.

CVG Sterile Mushroom Substrate FAQs

What is CVG Substrate?

CVG is a type of inexpensive mushroom substrate, meant to provide the necessary nutrients to mushroom spores and facilitate mycelium growth. The name stands for Coco coir, Vermiculite, and Gypsum, the three main components. It can be used to grow magic mushrooms, but there are plenty of dung-loving mushrooms that thrive in this substrate.

What is the ideal mushroom substrate for my culture?

Most mushrooms require their own specific combination of nutrients. This means that different mushroom varieties like oyster mushrooms and Lion's mane mushrooms might require different types of substrates. You'll need to research the most effective mushroom substrate for your mushroom of choice.

Some of the most popular choices for substrate material are manure, straw, hardwood sawdust, coffee grounds, logs, and cardboard.

How do I know if my mushroom substrate is bad?

One of the biggest dangers of indoor mushroom growing is the risk of contaminating your substrate and your culture. Here are a few signs to look out for:

  • Strong, bad smell
  • Abnormal growths (misshapen or stunted mushrooms)
  • White or blue-green mold growing on the surface

At Mushroom Spawn Store we sell fully sterile substrate and sterile grain so that the risk of contamination is kept as close to 0 as possible. Shop today for a risk-free mushroom-growing journey. 

Do you ship in discreet packaging?

Yes, all our products will be shipped in plain brown boxes, so you can safely and discreetly begin your mushroom cultivation journey. Orders ship from "The Spawn Store".

How long does it take to grow mushrooms using aged manure substrate?

The growth time for dung-loving mushrooms usually ranges between 2-4 weeks from set-up. This time can vary depending on the specific conditions of your growing environment. 

Do you offer flexible payment options?

Yes, we do! For orders over $50, you can choose to pay in 4 instalments using ShopPay. 

Customer Reviews

Based on 2 reviews
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T
Tim Ekeberg
Great product for a great price.

I found MySpawnStore by accident and what a great find! Excellent product professionally prepared.

C
Customer
Top notch customer service..

Bought a bag of substrate through amazon.which had soured. They replaced it and also sent me grain bag since I had already added spawn to it. And they sent it so quickly. Will be purchasing directly from them from now on

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