Benefits of the optimal sterilized substrate

Development of the mycelium during incubation

Organic Sterilized Growing Media

Suitable for use in organic farming: Certified by Certisys (BE-BIO-01), guaranteeing superior organic quality.
Optimal Productivity: A specially formulated mix designed to provide the perfect growing medium for wood-decaying fungi, ensuring maximum yield.
Guaranteed Sterility: Bags sterilized in the laboratory and sealed to ensure contamination-free use.
Ease of Inoculation: Compatible with our grain-based mycelium.

€10.00

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Categories:
Indoor Gardening Laboratory GrowingSupplies Growing Media

Grow your wood-decaying mushrooms with our sterilized substrate bags, whenever you want.

Suitable for Organic Farming. Our "Optimal" growing medium is made from wood shavings (free of adhesives and treatments) and organic cereal residues. We are inspected and certified by Certisys (BE-BIO-01).

Productivity. We have studied the composition of the various ingredients to provide the mycelium with an optimal substrate in terms of carbon-to-nitrogen ratio, sugars, and minerals. Composed of a base of beech sawdust, this substrate is suitable for wood-decaying fungi that break down wood: oyster mushrooms, king trumpet mushrooms, nameko mushrooms, lion’s mane mushrooms, reishi mushrooms, as well as shiitake mushrooms, which are generally more demanding in terms of substrate.

Storage: The bags can be stored for3 to 4 weeksin a cool, clean room. However, for best results, we recommend using them shortly after receipt.

Contents: Approximately 5 kg of growing medium in a microfilter bag (Unicorn XLS-A)

To inoculate them, we recommend using ourgrain-based mycelium.

They are sterilized and then sealed in the laboratory to ensure sterility during transport. They can be stored for several weeks before use; however, for safety reasons, we recommend using them sooner rather than later.

Legal notice for Belgium: “Organic growing medium: Pasteurized, uninoculated mushroom-
ing medium” (Exemption No. EM470.J)

Usage

We recommend that you open the bags and work in the cleanest possible environment, preferably using a laminar flow hood, a glove box, or a fume hood.

Clean the outside of the bag, especially where you will be opening it at the top, using 70% alcohol or 10% bleach.
Clean a sharp blade, and if possible, heat it over a flame first. Use it to cut open the bag just below the seal.
Inoculate (seed) with 5 to 10%grain-based mycelium. That is, 250 to 500 grams of grain-based mycelium per bag. If your sterilization conditions are good, you can try reducing the percentage of mycelium.
Seal the bag using a heat sealer, clips, or adhesive tape. Leave as much air as possible inside the bag and make sure the filter remains unobstructed.
Mix the substrate to distribute the grains evenly throughout.
Place the incubation bag at a temperature of 20–24°C.

Note: Opening the bag in a non-sterile environment is more likely to lead to contamination.

If your inoculation area is not sterile, we recommend a different method: simply pour between 250 and 500 grams of grain-based mycelium onto the surface of the substrate and seal the bag without mixing them. This way, if any bacteria or mold were to accidentally enter the bags, they would find themselves in direct competition with the grain-based mycelium, which has the advantage of being more vigorous. The incubation period will be slightly longer, but you will significantly reduce the risk of contamination.

Transportation

Due to the volume and weight of the substrates, we can only include 4 bales per package; therefore, it is best to order in multiples of 4. In some cases, our website may not correctly calculate the appropriate number of packages if you order a large number of bags or multiple products at the same time. In such cases, we reserve the right to reduce the quantity of products or increase the shipping costs as necessary.

We can also ship up to 80 bales per pallet. Shipping costs vary depending on the destination. You or we can arrange for shipping.

Note:

During transport, condensation may form on plastic surfaces due to temperature fluctuations. This is not a problem in itself.
All warranty claims must be submitted within 10 days of receipt, with the bags still sealed. Claims must be submitted via email, accompanied by detailed photos of the issue.

Organic Certification

All our products are certified under the BE-BIO-01 standard by Certisys Belgium.

Perfect, as usual

Perfect, as usual!

Meets expectations

It worked really well with reishi using the grain-to-grain transfer method

Very satisfied, great website

Super convenient

It worked really well. Since I don’t work in a lab, I tried the technique of opening the bag at the top, pouring in the mycelium, and not mixing the bag for 10 days so that any contaminants that rise to the surface would be “eaten” right away by the mycelium. After 10 days, I mixed the bag to distribute the mycelium. I had zero contamination and an amazing harvest. Thank you