Optimal Substrate - Pellets for growing woody mushrooms

Discover our pelletized substrate, specially designed for the production of wood mushrooms:

✔️ Certified Organic Farming. This substrate is composed of untreated sawdust without glue, as well as organic cereal residues. We are certified by Certisys (BE-BIO-01).

💡 Advantages of pelletization: Pelletizing ingredients allows optimal standardization of the substrate, eliminating a large part of the contaminants during compaction. Plus, storage requires four times less space, saving you space. Long-term conservation is guaranteed, so you can use the substrate according to your needs.

🚀 Exceptional productivity: The composition of the substrate has been carefully studied to offer the mycelium an optimal carbon/nitrogen ratio, as well as a balanced supply of sugars and minerals. Composed mainly of beech sawdust, this substrate is ideal for woody mushrooms, such as oyster mushrooms, eryngii, nameko, lion's mane, and shiitake, the latter being particularly demanding in terms of substrate.

📦 Contents: approximately 2.2 kg of substrate included in a microfilter bag (Unicorn XLS-A) or 25 kg in bulk.

🛠️ User manual

Add approximately 3.3 liters of water to the bag (corresponding to a humidity level of 60-66% of the total weight of the pellets and water), allow the pellets to absorb the water for 5-10 minutes, then pasteurize or sterilize the bag.

For varieties with rapid and aggressive mycelium, such as oyster mushrooms, it is possible to add boiling water (99°C) directly to the pellets. Place the bags in an insulated box to maintain a high temperature longer and maximize the effect of pasteurization. Then inoculate with approximately 10% mycelium once the pellets have cooled.

You need approximately 3 bags of optimal substrate for 1.5 kg of mycelium.

With a 25 kg bag of optimal substrate, you can produce about 65 kg of wet substrate, requiring about 2 mycelia on 3 kg mycelium on grains .

⚠️ Note: This substrate is rich in nitrogen and sugar, which gives it high productivity, but also increases the risk of contamination if the sterilization and inoculation conditions are not optimal.

Harvest potential: 1.5 to 2 kg of fresh oyster mushrooms per bag over 3 harvests.

📌 Note

The bagging process may cause a slight variation in bag weight. We recommend a humidity level of 60% for the substrate (i.e. 600 g of water for 400 g of dry matter to obtain 1 kg of wet substrate).

This substrate is richer in sugars and nitrogen than sawdust alone, which makes it more productive but also more prone to contamination. We therefore advise working in conditions as clean as possible, ideally in a sterile environment.

The Master Mix ❓

In the mushroom growing community, we often talk about Master Mix.

🔍 What is it exactly about?

The Master Mix is ​​a recipe popularized by a mushroom grower in the United States known as T.R. Davis. This mixture is made up of 50% hardwood sawdust and 50% soybean hulls. This substrate is renowned for its very high productivity, especially during the first flush. It is suitable for most wood-growing mushrooms, including oyster mushrooms.

🔧 Is the optimal substrate the Master Mix?

We analyzed the composition of the Master Mix in terms of nitrogen levels, sugars, and minerals, and developed a new recipe based on local ingredients.

Indeed, in Europe, soy production is limited, and importing it from far away is not a sustainable solution. Growing mushrooms allows us to develop local resources. We therefore use other co-products from local cereal agriculture, which provide the nutrients necessary for optimal nutrition for our mushrooms.

Our recipe is based on a base of beech sawdust, enriched with organic cereals, sugars and minerals, all in the form of pellets. The result? An optimal substrate!

We have also ensured that this substrate is suitable for all woody mushrooms, including shiitake, which is more demanding. After numerous tests, we have achieved higher productivity than most substrates available on the market.