What is this product used for?

This product is used as a nutritive substrate to grow out fungal mycelium.

The grain has been selected for its high food-grade quality, optimized to the perfect moisture, and sterilized and sealed to prevent any unwanted contamination before the selected fungus is introduced.

What are the main ingredients of this product?

We currently only use two types of grain:

  • Rye
  • Popcorn

What types of mushrooms can I grow with this product?

A wide variety of gourmet and medicinal mushrooms. It's best to start with the kind of mushroom you want to grow and then search for common techniques and materials (likely available on our site).

What is the shelf life of this product?

Recommended use within three months but has been used past a year just fine. If putting into prolonged storage, sealing it in an airtight bag (so there's no moisture slowly escaping through the filter patch over months) is a good idea. If you're restoring it short term, just use the normal guidelines: cool, dry room temperature, etc.

How should I store this product?

Store in a cool, dry place away from sunlight if not in use. For prolonged storage, seal it in an airtight bag.

How do I prepare the product for use?

  1. In a sterile environment, prepare a syringe with spores or liquid culture.
  2. Sterilize the injection port with isopropyl alcohol.
  3. Inject the spores or culture through the port. The self-healing port requires no tape.

What are the optimal environmental conditions for using this product?

  • Maintain an ambient temperature of 70-80°F in the entire room during cultivation.

  • Ensure the humidity in the container where the mushrooms are growing is between 90%-100%.

How long does it take for mycelium to start growing?

Mycelial growth is visible in 3-4 days for popcorn and 4-7 days for rye.

It takes 1-2 weeks to reach 30% colonization and an additional 1-2 weeks for full colonization after a break and shake.

What should I do if I see contamination?

It is often best practice to discard the entire unit and start over to avoid spreading contamination.

Can I reuse this product after one cycle of growth?

While the bags, ports, and filters can be reused or repurposed if desired, it might be more cumbersome than just getting a new bag or unit.

What safety precautions should I take when using this product?

Use caution with open flames and isopropyl alcohol for sterilization. Handle sharp tools carefully.

Is this product certified by any regulatory body?

No, follow local laws and regulations as a consumer.

How is the product packaged for shipping?

Bags are sealed in zipper plastic bags and placed in appropriately sized cardboard boxes. Packing paper ensures bags are secure and undamaged during shipping.

What should I do if the product is damaged during shipping?

Contact our company and let us know what happened so we can make things right.

Who can I contact for support?

You can contact support at info@comyco.co.

What is the warranty policy for this product?

Warranty is void if the bag seal is broken or the injection port is used. The contents are guaranteed sterile before use.

Is this product environmentally friendly?

The organic material inside the bag is great for compost. We explore sustainable alternatives and encourage mindful use.

Can the packaging be recycled?

Some areas recycle PP5 plastic. Check with your local recycling program.